21892880

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{967}}^1$

素因数の和:1263

約数の個数: 40

約数和(自身を含む): 51133632

約数和(自身を除く): 29240752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 967, 1132, 1415, 1934, 2264, 2830, 3868, 4528, 4835, 5660, 7736, 9670, 11320, 15472, 19340, 22640, 38680, 77360, 273661, 547322, 1094644, 1368305, 2189288, 2736610, 4378576, 5473220, 10946440, 21892880]

約数ペア:

[(1, 21892880), (2, 10946440), (4, 5473220), (5, 4378576), (8, 2736610), (10, 2189288), (16, 1368305), (20, 1094644), (40, 547322), (80, 273661), (283, 77360), (566, 38680), (967, 22640), (1132, 19340), (1415, 15472), (1934, 11320), (2264, 9670), (2830, 7736), (3868, 5660), (4528, 4835)]