28404957

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{2647}}^1$

素因数の和:2737

約数の個数: 24

約数和(自身を含む): 44677056

約数和(自身を除く): 16272099

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 511, 1533, 2647, 3577, 7941, 10731, 18529, 55587, 129703, 193231, 389109, 579693, 1352617, 4057851, 9468319, 28404957]

約数ペア:

[(1, 28404957), (3, 9468319), (7, 4057851), (21, 1352617), (49, 579693), (73, 389109), (147, 193231), (219, 129703), (511, 55587), (1533, 18529), (2647, 10731), (3577, 7941)]