20391912

素因数分解:

$2^3\times 3^4\times {\mathrm{31469}}^1$

素因数の和:31487

約数の個数: 40

約数和(自身を含む): 57118050

約数和(自身を除く): 36726138

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 31469, 62938, 94407, 125876, 188814, 251752, 283221, 377628, 566442, 755256, 849663, 1132884, 1699326, 2265768, 2548989, 3398652, 5097978, 6797304, 10195956, 20391912]

約数ペア:

[(1, 20391912), (2, 10195956), (3, 6797304), (4, 5097978), (6, 3398652), (8, 2548989), (9, 2265768), (12, 1699326), (18, 1132884), (24, 849663), (27, 755256), (36, 566442), (54, 377628), (72, 283221), (81, 251752), (108, 188814), (162, 125876), (216, 94407), (324, 62938), (648, 31469)]