20545928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11621}}^1$

素因数の和:11657

約数の個数: 32

約数和(自身を含む): 43931160

約数和(自身を除く): 23385232

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11621, 23242, 46484, 92968, 151073, 197557, 302146, 395114, 604292, 790228, 1208584, 1580456, 2568241, 5136482, 10272964, 20545928]

約数ペア:

[(1, 20545928), (2, 10272964), (4, 5136482), (8, 2568241), (13, 1580456), (17, 1208584), (26, 790228), (34, 604292), (52, 395114), (68, 302146), (104, 197557), (136, 151073), (221, 92968), (442, 46484), (884, 23242), (1768, 11621)]