21737660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{155269}}^1$

素因数の和:155285

約数の個数: 24

約数和(自身を含む): 52170720

約数和(自身を除く): 30433060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 155269, 310538, 621076, 776345, 1086883, 1552690, 2173766, 3105380, 4347532, 5434415, 10868830, 21737660]

約数ペア:

[(1, 21737660), (2, 10868830), (4, 5434415), (5, 4347532), (7, 3105380), (10, 2173766), (14, 1552690), (20, 1086883), (28, 776345), (35, 621076), (70, 310538), (140, 155269)]