21042270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:210

約数の個数: 96

約数和(自身を含む): 57620160

約数和(自身を除く): 36577890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 45, 71, 74, 89, 90, 111, 142, 178, 185, 213, 222, 267, 333, 355, 370, 426, 445, 534, 555, 639, 666, 710, 801, 890, 1065, 1110, 1278, 1335, 1602, 1665, 2130, 2627, 2670, 3195, 3293, 3330, 4005, 5254, 6319, 6390, 6586, 7881, 8010, 9879, 12638, 13135, 15762, 16465, 18957, 19758, 23643, 26270, 29637, 31595, 32930, 37914, 39405, 47286, 49395, 56871, 59274, 63190, 78810, 94785, 98790, 113742, 118215, 148185, 189570, 233803, 236430, 284355, 296370, 467606, 568710, 701409, 1169015, 1402818, 2104227, 2338030, 3507045, 4208454, 7014090, 10521135, 21042270]

約数ペア:

[(1, 21042270), (2, 10521135), (3, 7014090), (5, 4208454), (6, 3507045), (9, 2338030), (10, 2104227), (15, 1402818), (18, 1169015), (30, 701409), (37, 568710), (45, 467606), (71, 296370), (74, 284355), (89, 236430), (90, 233803), (111, 189570), (142, 148185), (178, 118215), (185, 113742), (213, 98790), (222, 94785), (267, 78810), (333, 63190), (355, 59274), (370, 56871), (426, 49395), (445, 47286), (534, 39405), (555, 37914), (639, 32930), (666, 31595), (710, 29637), (801, 26270), (890, 23643), (1065, 19758), (1110, 18957), (1278, 16465), (1335, 15762), (1602, 13135), (1665, 12638), (2130, 9879), (2627, 8010), (2670, 7881), (3195, 6586), (3293, 6390), (3330, 6319), (4005, 5254)]