21574804

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:332

約数の個数: 36

約数和(自身を含む): 40623744

約数和(自身を除く): 19048940

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 223, 268, 361, 446, 722, 892, 1273, 1444, 2546, 4237, 5092, 8474, 14941, 16948, 24187, 29882, 48374, 59764, 80503, 96748, 161006, 283879, 322012, 567758, 1135516, 5393701, 10787402, 21574804]

約数ペア:

[(1, 21574804), (2, 10787402), (4, 5393701), (19, 1135516), (38, 567758), (67, 322012), (76, 283879), (134, 161006), (223, 96748), (268, 80503), (361, 59764), (446, 48374), (722, 29882), (892, 24187), (1273, 16948), (1444, 14941), (2546, 8474), (4237, 5092)]