21400508

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{229}}^1\times {\mathrm{383}}^1$

素因数の和:677

約数の個数: 24

約数和(自身を含む): 38330880

約数和(自身を除く): 16930372

約数列:

[1, 2, 4, 61, 122, 229, 244, 383, 458, 766, 916, 1532, 13969, 23363, 27938, 46726, 55876, 87707, 93452, 175414, 350828, 5350127, 10700254, 21400508]

約数ペア:

[(1, 21400508), (2, 10700254), (4, 5350127), (61, 350828), (122, 175414), (229, 93452), (244, 87707), (383, 55876), (458, 46726), (766, 27938), (916, 23363), (1532, 13969)]