19906666

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{20693}}^1$

素因数の和:20745

約数の個数: 16

約数和(自身を含む): 33027624

約数和(自身を除く): 13120958

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 20693, 41386, 269009, 538018, 765641, 1531282, 9953333, 19906666]

約数ペア:

[(1, 19906666), (2, 9953333), (13, 1531282), (26, 765641), (37, 538018), (74, 269009), (481, 41386), (962, 20693)]