20371472

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{409}}^1$

素因数の和:711

約数の個数: 40

約数和(自身を含む): 43315680

約数和(自身を除く): 22944208

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 283, 409, 566, 818, 1132, 1636, 2264, 3113, 3272, 4499, 4528, 6226, 6544, 8998, 12452, 17996, 24904, 35992, 49808, 71984, 115747, 231494, 462988, 925976, 1273217, 1851952, 2546434, 5092868, 10185736, 20371472]

約数ペア:

[(1, 20371472), (2, 10185736), (4, 5092868), (8, 2546434), (11, 1851952), (16, 1273217), (22, 925976), (44, 462988), (88, 231494), (176, 115747), (283, 71984), (409, 49808), (566, 35992), (818, 24904), (1132, 17996), (1636, 12452), (2264, 8998), (3113, 6544), (3272, 6226), (4499, 4528)]