21558420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:151

約数の個数: 192

約数和(自身を含む): 75075840

約数和(自身を除く): 53517420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 37, 39, 45, 52, 54, 60, 65, 74, 78, 83, 90, 108, 111, 117, 130, 135, 148, 156, 166, 180, 185, 195, 222, 234, 249, 260, 270, 332, 333, 351, 370, 390, 415, 444, 468, 481, 498, 540, 555, 585, 666, 702, 740, 747, 780, 830, 962, 996, 999, 1079, 1110, 1170, 1245, 1332, 1404, 1443, 1494, 1660, 1665, 1755, 1924, 1998, 2158, 2220, 2241, 2340, 2405, 2490, 2886, 2988, 3071, 3237, 3330, 3510, 3735, 3996, 4316, 4329, 4482, 4810, 4980, 4995, 5395, 5772, 6142, 6474, 6660, 7020, 7215, 7470, 8658, 8964, 9213, 9620, 9711, 9990, 10790, 11205, 12284, 12948, 12987, 14430, 14940, 15355, 16185, 17316, 18426, 19422, 19980, 21580, 21645, 22410, 25974, 27639, 28860, 29133, 30710, 32370, 36852, 38844, 39923, 43290, 44820, 46065, 48555, 51948, 55278, 58266, 61420, 64740, 64935, 79846, 82917, 86580, 92130, 97110, 110556, 116532, 119769, 129870, 138195, 145665, 159692, 165834, 184260, 194220, 199615, 239538, 259740, 276390, 291330, 331668, 359307, 399230, 414585, 479076, 552780, 582660, 598845, 718614, 798460, 829170, 1077921, 1197690, 1437228, 1658340, 1796535, 2155842, 2395380, 3593070, 4311684, 5389605, 7186140, 10779210, 21558420]

約数ペア:

[(1, 21558420), (2, 10779210), (3, 7186140), (4, 5389605), (5, 4311684), (6, 3593070), (9, 2395380), (10, 2155842), (12, 1796535), (13, 1658340), (15, 1437228), (18, 1197690), (20, 1077921), (26, 829170), (27, 798460), (30, 718614), (36, 598845), (37, 582660), (39, 552780), (45, 479076), (52, 414585), (54, 399230), (60, 359307), (65, 331668), (74, 291330), (78, 276390), (83, 259740), (90, 239538), (108, 199615), (111, 194220), (117, 184260), (130, 165834), (135, 159692), (148, 145665), (156, 138195), (166, 129870), (180, 119769), (185, 116532), (195, 110556), (222, 97110), (234, 92130), (249, 86580), (260, 82917), (270, 79846), (332, 64935), (333, 64740), (351, 61420), (370, 58266), (390, 55278), (415, 51948), (444, 48555), (468, 46065), (481, 44820), (498, 43290), (540, 39923), (555, 38844), (585, 36852), (666, 32370), (702, 30710), (740, 29133), (747, 28860), (780, 27639), (830, 25974), (962, 22410), (996, 21645), (999, 21580), (1079, 19980), (1110, 19422), (1170, 18426), (1245, 17316), (1332, 16185), (1404, 15355), (1443, 14940), (1494, 14430), (1660, 12987), (1665, 12948), (1755, 12284), (1924, 11205), (1998, 10790), (2158, 9990), (2220, 9711), (2241, 9620), (2340, 9213), (2405, 8964), (2490, 8658), (2886, 7470), (2988, 7215), (3071, 7020), (3237, 6660), (3330, 6474), (3510, 6142), (3735, 5772), (3996, 5395), (4316, 4995), (4329, 4980), (4482, 4810)]