20451591

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 30232800

約数和(自身を除く): 9781209

約数列:

[1, 3, 9, 101, 149, 151, 303, 447, 453, 909, 1341, 1359, 15049, 15251, 22499, 45147, 45753, 67497, 135441, 137259, 202491, 2272399, 6817197, 20451591]

約数ペア:

[(1, 20451591), (3, 6817197), (9, 2272399), (101, 202491), (149, 137259), (151, 135441), (303, 67497), (447, 45753), (453, 45147), (909, 22499), (1341, 15251), (1359, 15049)]