17981942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43019}}^1$

素因数の和:43051

約数の個数: 16

約数和(自身を含む): 30974400

約数和(自身を除く): 12992458

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 43019, 86038, 473209, 817361, 946418, 1634722, 8990971, 17981942]

約数ペア:

[(1, 17981942), (2, 8990971), (11, 1634722), (19, 946418), (22, 817361), (38, 473209), (209, 86038), (418, 43019)]