21735140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{155251}}^1$

素因数の和:155267

約数の個数: 24

約数和(自身を含む): 52164672

約数和(自身を除く): 30429532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 155251, 310502, 621004, 776255, 1086757, 1552510, 2173514, 3105020, 4347028, 5433785, 10867570, 21735140]

約数ペア:

[(1, 21735140), (2, 10867570), (4, 5433785), (5, 4347028), (7, 3105020), (10, 2173514), (14, 1552510), (20, 1086757), (28, 776255), (35, 621004), (70, 310502), (140, 155251)]