20708456

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1627}}^1$

素因数の和:1713

約数の個数: 32

約数和(自身を含む): 40830240

約数和(自身を除く): 20121784

約数列:

[1, 2, 4, 8, 37, 43, 74, 86, 148, 172, 296, 344, 1591, 1627, 3182, 3254, 6364, 6508, 12728, 13016, 60199, 69961, 120398, 139922, 240796, 279844, 481592, 559688, 2588557, 5177114, 10354228, 20708456]

約数ペア:

[(1, 20708456), (2, 10354228), (4, 5177114), (8, 2588557), (37, 559688), (43, 481592), (74, 279844), (86, 240796), (148, 139922), (172, 120398), (296, 69961), (344, 60199), (1591, 13016), (1627, 12728), (3182, 6508), (3254, 6364)]