16812620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{76421}}^1$

素因数の和:76441

約数の個数: 24

約数和(自身を含む): 38516688

約数和(自身を除く): 21704068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 76421, 152842, 305684, 382105, 764210, 840631, 1528420, 1681262, 3362524, 4203155, 8406310, 16812620]

約数ペア:

[(1, 16812620), (2, 8406310), (4, 4203155), (5, 3362524), (10, 1681262), (11, 1528420), (20, 840631), (22, 764210), (44, 382105), (55, 305684), (110, 152842), (220, 76421)]