20801774

素因数分解:

$2^1\times 7^2\times {\mathrm{233}}^1\times {\mathrm{911}}^1$

素因数の和:1160

約数の個数: 24

約数和(自身を含む): 36492768

約数和(自身を除く): 15690994

約数列:

[1, 2, 7, 14, 49, 98, 233, 466, 911, 1631, 1822, 3262, 6377, 11417, 12754, 22834, 44639, 89278, 212263, 424526, 1485841, 2971682, 10400887, 20801774]

約数ペア:

[(1, 20801774), (2, 10400887), (7, 2971682), (14, 1485841), (49, 424526), (98, 212263), (233, 89278), (466, 44639), (911, 22834), (1631, 12754), (1822, 11417), (3262, 6377)]