21500438

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:444

約数の個数: 24

約数和(自身を含む): 34500312

約数和(自身を除く): 12999874

約数列:

[1, 2, 19, 38, 97, 194, 307, 361, 614, 722, 1843, 3686, 5833, 11666, 29779, 35017, 59558, 70034, 110827, 221654, 565801, 1131602, 10750219, 21500438]

約数ペア:

[(1, 21500438), (2, 10750219), (19, 1131602), (38, 565801), (97, 221654), (194, 110827), (307, 70034), (361, 59558), (614, 35017), (722, 29779), (1843, 11666), (3686, 5833)]