21730660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{155219}}^1$

素因数の和:155235

約数の個数: 24

約数和(自身を含む): 52153920

約数和(自身を除く): 30423260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 155219, 310438, 620876, 776095, 1086533, 1552190, 2173066, 3104380, 4346132, 5432665, 10865330, 21730660]

約数ペア:

[(1, 21730660), (2, 10865330), (4, 5432665), (5, 4346132), (7, 3104380), (10, 2173066), (14, 1552190), (20, 1086533), (28, 776095), (35, 620876), (70, 310438), (140, 155219)]