21708270

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:147

約数の個数: 128

約数和(自身を含む): 62052480

約数和(自身を除く): 40344210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 41, 45, 53, 54, 74, 82, 90, 106, 111, 123, 135, 159, 185, 205, 222, 246, 265, 270, 318, 333, 369, 370, 410, 477, 530, 555, 615, 666, 738, 795, 954, 999, 1107, 1110, 1230, 1431, 1517, 1590, 1665, 1845, 1961, 1998, 2173, 2214, 2385, 2862, 3034, 3330, 3690, 3922, 4346, 4551, 4770, 4995, 5535, 5883, 6519, 7155, 7585, 9102, 9805, 9990, 10865, 11070, 11766, 13038, 13653, 14310, 15170, 17649, 19557, 19610, 21730, 22755, 27306, 29415, 32595, 35298, 39114, 40959, 45510, 52947, 58671, 58830, 65190, 68265, 80401, 81918, 88245, 97785, 105894, 117342, 136530, 160802, 176490, 195570, 204795, 241203, 264735, 293355, 402005, 409590, 482406, 529470, 586710, 723609, 804010, 1206015, 1447218, 2170827, 2412030, 3618045, 4341654, 7236090, 10854135, 21708270]

約数ペア:

[(1, 21708270), (2, 10854135), (3, 7236090), (5, 4341654), (6, 3618045), (9, 2412030), (10, 2170827), (15, 1447218), (18, 1206015), (27, 804010), (30, 723609), (37, 586710), (41, 529470), (45, 482406), (53, 409590), (54, 402005), (74, 293355), (82, 264735), (90, 241203), (106, 204795), (111, 195570), (123, 176490), (135, 160802), (159, 136530), (185, 117342), (205, 105894), (222, 97785), (246, 88245), (265, 81918), (270, 80401), (318, 68265), (333, 65190), (369, 58830), (370, 58671), (410, 52947), (477, 45510), (530, 40959), (555, 39114), (615, 35298), (666, 32595), (738, 29415), (795, 27306), (954, 22755), (999, 21730), (1107, 19610), (1110, 19557), (1230, 17649), (1431, 15170), (1517, 14310), (1590, 13653), (1665, 13038), (1845, 11766), (1961, 11070), (1998, 10865), (2173, 9990), (2214, 9805), (2385, 9102), (2862, 7585), (3034, 7155), (3330, 6519), (3690, 5883), (3922, 5535), (4346, 4995), (4551, 4770)]