21404079

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{173}}^1\times {\mathrm{233}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 31758480

約数和(自身を除く): 10354401

約数列:

[1, 3, 9, 59, 173, 177, 233, 519, 531, 699, 1557, 2097, 10207, 13747, 30621, 40309, 41241, 91863, 120927, 123723, 362781, 2378231, 7134693, 21404079]

約数ペア:

[(1, 21404079), (3, 7134693), (9, 2378231), (59, 362781), (173, 123723), (177, 120927), (233, 91863), (519, 41241), (531, 40309), (699, 30621), (1557, 13747), (2097, 10207)]