20848575

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{683}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 38676096

約数和(自身を除く): 17827521

約数列:

[1, 3, 5, 11, 15, 25, 33, 37, 55, 75, 111, 165, 185, 275, 407, 555, 683, 825, 925, 1221, 2035, 2049, 2775, 3415, 6105, 7513, 10175, 10245, 17075, 22539, 25271, 30525, 37565, 51225, 75813, 112695, 126355, 187825, 277981, 379065, 563475, 631775, 833943, 1389905, 1895325, 4169715, 6949525, 20848575]

約数ペア:

[(1, 20848575), (3, 6949525), (5, 4169715), (11, 1895325), (15, 1389905), (25, 833943), (33, 631775), (37, 563475), (55, 379065), (75, 277981), (111, 187825), (165, 126355), (185, 112695), (275, 75813), (407, 51225), (555, 37565), (683, 30525), (825, 25271), (925, 22539), (1221, 17075), (2035, 10245), (2049, 10175), (2775, 7513), (3415, 6105)]