21790338

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{157901}}^1$

素因数の和:157929

約数の個数: 16

約数和(自身を含む): 45475776

約数和(自身を除く): 23685438

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 157901, 315802, 473703, 947406, 3631723, 7263446, 10895169, 21790338]

約数ペア:

[(1, 21790338), (2, 10895169), (3, 7263446), (6, 3631723), (23, 947406), (46, 473703), (69, 315802), (138, 157901)]