20824370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{571}}^1$

素因数の和:1106

約数の個数: 32

約数和(自身を含む): 42996096

約数和(自身を除く): 22171726

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 521, 571, 1042, 1142, 2605, 2855, 3647, 3997, 5210, 5710, 7294, 7994, 18235, 19985, 36470, 39970, 297491, 594982, 1487455, 2082437, 2974910, 4164874, 10412185, 20824370]

約数ペア:

[(1, 20824370), (2, 10412185), (5, 4164874), (7, 2974910), (10, 2082437), (14, 1487455), (35, 594982), (70, 297491), (521, 39970), (571, 36470), (1042, 19985), (1142, 18235), (2605, 7994), (2855, 7294), (3647, 5710), (3997, 5210)]