20856573

素因数分解:

$3^2\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 30825600

約数和(自身を除く): 9969027

約数列:

[1, 3, 9, 103, 149, 151, 309, 447, 453, 927, 1341, 1359, 15347, 15553, 22499, 46041, 46659, 67497, 138123, 139977, 202491, 2317397, 6952191, 20856573]

約数ペア:

[(1, 20856573), (3, 6952191), (9, 2317397), (103, 202491), (149, 139977), (151, 138123), (309, 67497), (447, 46659), (453, 46041), (927, 22499), (1341, 15553), (1359, 15347)]