19984778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{5573}}^1$

素因数の和:5749

約数の個数: 16

約数和(自身を含む): 32908896

約数和(自身を除く): 12924118

約数列:

[1, 2, 11, 22, 163, 326, 1793, 3586, 5573, 11146, 61303, 122606, 908399, 1816798, 9992389, 19984778]

約数ペア:

[(1, 19984778), (2, 9992389), (11, 1816798), (22, 908399), (163, 122606), (326, 61303), (1793, 11146), (3586, 5573)]