19916212

素因数分解:

$2^2\times {\mathrm{37}}^2\times {\mathrm{3637}}^1$

素因数の和:3715

約数の個数: 18

約数和(自身を含む): 35830662

約数和(自身を除く): 15914450

約数列:

[1, 2, 4, 37, 74, 148, 1369, 2738, 3637, 5476, 7274, 14548, 134569, 269138, 538276, 4979053, 9958106, 19916212]

約数ペア:

[(1, 19916212), (2, 9958106), (4, 4979053), (37, 538276), (74, 269138), (148, 134569), (1369, 14548), (2738, 7274), (3637, 5476)]