21231266

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2411}}^1$

素因数の和:2474

約数の個数: 32

約数和(自身を含む): 39595392

約数和(自身を除く): 18364126

約数列:

[1, 2, 7, 14, 17, 34, 37, 74, 119, 238, 259, 518, 629, 1258, 2411, 4403, 4822, 8806, 16877, 33754, 40987, 81974, 89207, 178414, 286909, 573818, 624449, 1248898, 1516519, 3033038, 10615633, 21231266]

約数ペア:

[(1, 21231266), (2, 10615633), (7, 3033038), (14, 1516519), (17, 1248898), (34, 624449), (37, 573818), (74, 286909), (119, 178414), (238, 89207), (259, 81974), (518, 40987), (629, 33754), (1258, 16877), (2411, 8806), (4403, 4822)]