47720379

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 74419200

約数和(自身を除く): 26698821

約数列:

[1, 3, 7, 21, 101, 149, 151, 303, 447, 453, 707, 1043, 1057, 2121, 3129, 3171, 15049, 15251, 22499, 45147, 45753, 67497, 105343, 106757, 157493, 316029, 320271, 472479, 2272399, 6817197, 15906793, 47720379]

約数ペア:

[(1, 47720379), (3, 15906793), (7, 6817197), (21, 2272399), (101, 472479), (149, 320271), (151, 316029), (303, 157493), (447, 106757), (453, 105343), (707, 67497), (1043, 45753), (1057, 45147), (2121, 22499), (3129, 15251), (3171, 15049)]