19973218

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{2357}}^1$

素因数の和:2601

約数の個数: 16

約数和(自身を含む): 31691520

約数和(自身を除く): 11718302

約数列:

[1, 2, 19, 38, 223, 446, 2357, 4237, 4714, 8474, 44783, 89566, 525611, 1051222, 9986609, 19973218]

約数ペア:

[(1, 19973218), (2, 9986609), (19, 1051222), (38, 525611), (223, 89566), (446, 44783), (2357, 8474), (4237, 4714)]