21981330

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:121

約数の個数: 192

約数和(自身を含む): 71705088

約数和(自身を除く): 49723758

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 35, 37, 41, 42, 45, 46, 63, 69, 70, 74, 82, 90, 105, 111, 115, 123, 126, 138, 161, 185, 205, 207, 210, 222, 230, 246, 259, 287, 315, 322, 333, 345, 369, 370, 410, 414, 483, 518, 555, 574, 615, 630, 666, 690, 738, 777, 805, 851, 861, 943, 966, 1035, 1110, 1230, 1295, 1435, 1449, 1517, 1554, 1610, 1665, 1702, 1722, 1845, 1886, 2070, 2331, 2415, 2553, 2583, 2590, 2829, 2870, 2898, 3034, 3330, 3690, 3885, 4255, 4305, 4551, 4662, 4715, 4830, 5106, 5166, 5658, 5957, 6601, 7245, 7585, 7659, 7770, 8487, 8510, 8610, 9102, 9430, 10619, 11655, 11914, 12765, 12915, 13202, 13653, 14145, 14490, 15170, 15318, 16974, 17871, 19803, 21238, 22755, 23310, 25530, 25830, 27306, 28290, 29785, 31857, 33005, 34891, 35742, 38295, 39606, 42435, 45510, 53095, 53613, 59409, 59570, 63714, 66010, 68265, 69782, 76590, 84870, 89355, 95571, 99015, 104673, 106190, 107226, 118818, 136530, 159285, 174455, 178710, 191142, 198030, 209346, 244237, 268065, 297045, 314019, 318570, 348910, 477855, 488474, 523365, 536130, 594090, 628038, 732711, 955710, 1046730, 1221185, 1465422, 1570095, 2198133, 2442370, 3140190, 3663555, 4396266, 7327110, 10990665, 21981330]

約数ペア:

[(1, 21981330), (2, 10990665), (3, 7327110), (5, 4396266), (6, 3663555), (7, 3140190), (9, 2442370), (10, 2198133), (14, 1570095), (15, 1465422), (18, 1221185), (21, 1046730), (23, 955710), (30, 732711), (35, 628038), (37, 594090), (41, 536130), (42, 523365), (45, 488474), (46, 477855), (63, 348910), (69, 318570), (70, 314019), (74, 297045), (82, 268065), (90, 244237), (105, 209346), (111, 198030), (115, 191142), (123, 178710), (126, 174455), (138, 159285), (161, 136530), (185, 118818), (205, 107226), (207, 106190), (210, 104673), (222, 99015), (230, 95571), (246, 89355), (259, 84870), (287, 76590), (315, 69782), (322, 68265), (333, 66010), (345, 63714), (369, 59570), (370, 59409), (410, 53613), (414, 53095), (483, 45510), (518, 42435), (555, 39606), (574, 38295), (615, 35742), (630, 34891), (666, 33005), (690, 31857), (738, 29785), (777, 28290), (805, 27306), (851, 25830), (861, 25530), (943, 23310), (966, 22755), (1035, 21238), (1110, 19803), (1230, 17871), (1295, 16974), (1435, 15318), (1449, 15170), (1517, 14490), (1554, 14145), (1610, 13653), (1665, 13202), (1702, 12915), (1722, 12765), (1845, 11914), (1886, 11655), (2070, 10619), (2331, 9430), (2415, 9102), (2553, 8610), (2583, 8510), (2590, 8487), (2829, 7770), (2870, 7659), (2898, 7585), (3034, 7245), (3330, 6601), (3690, 5957), (3885, 5658), (4255, 5166), (4305, 5106), (4551, 4830), (4662, 4715)]