19278704

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{10663}}^1$

素因数の和:10784

約数の個数: 20

約数和(自身を含む): 37686576

約数和(自身を除く): 18407872

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 10663, 21326, 42652, 85304, 170608, 1204919, 2409838, 4819676, 9639352, 19278704]

約数ペア:

[(1, 19278704), (2, 9639352), (4, 4819676), (8, 2409838), (16, 1204919), (113, 170608), (226, 85304), (452, 42652), (904, 21326), (1808, 10663)]