21967838

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{4159}}^1$

素因数の和:4319

約数の個数: 16

約数和(自身を含む): 34944000

約数和(自身を除く): 12976162

約数列:

[1, 2, 19, 38, 139, 278, 2641, 4159, 5282, 8318, 79021, 158042, 578101, 1156202, 10983919, 21967838]

約数ペア:

[(1, 21967838), (2, 10983919), (19, 1156202), (38, 578101), (139, 158042), (278, 79021), (2641, 8318), (4159, 5282)]