420708561

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{220151}}^1$

素因数の和:220181

約数の個数: 24

約数和(自身を含む): 702725184

約数和(自身を除く): 282016623

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 220151, 660453, 1541057, 2861963, 4623171, 8585889, 10787399, 20033741, 32362197, 60101223, 140236187, 420708561]

約数ペア:

[(1, 420708561), (3, 140236187), (7, 60101223), (13, 32362197), (21, 20033741), (39, 10787399), (49, 8585889), (91, 4623171), (147, 2861963), (273, 1541057), (637, 660453), (1911, 220151)]