21775268

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{2621}}^1$

素因数の和:2723

約数の個数: 24

約数和(自身を含む): 39938304

約数和(自身を除く): 18163036

約数列:

[1, 2, 4, 31, 62, 67, 124, 134, 268, 2077, 2621, 4154, 5242, 8308, 10484, 81251, 162502, 175607, 325004, 351214, 702428, 5443817, 10887634, 21775268]

約数ペア:

[(1, 21775268), (2, 10887634), (4, 5443817), (31, 702428), (62, 351214), (67, 325004), (124, 175607), (134, 162502), (268, 81251), (2077, 10484), (2621, 8308), (4154, 5242)]