18794672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90359}}^1$

素因数の和:90380

約数の個数: 20

約数和(自身を含む): 39216240

約数和(自身を除く): 20421568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90359, 180718, 361436, 722872, 1174667, 1445744, 2349334, 4698668, 9397336, 18794672]

約数ペア:

[(1, 18794672), (2, 9397336), (4, 4698668), (8, 2349334), (13, 1445744), (16, 1174667), (26, 722872), (52, 361436), (104, 180718), (208, 90359)]