21299272

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1531}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 41915520

約数和(自身を除く): 20616248

約数列:

[1, 2, 4, 8, 37, 47, 74, 94, 148, 188, 296, 376, 1531, 1739, 3062, 3478, 6124, 6956, 12248, 13912, 56647, 71957, 113294, 143914, 226588, 287828, 453176, 575656, 2662409, 5324818, 10649636, 21299272]

約数ペア:

[(1, 21299272), (2, 10649636), (4, 5324818), (8, 2662409), (37, 575656), (47, 453176), (74, 287828), (94, 226588), (148, 143914), (188, 113294), (296, 71957), (376, 56647), (1531, 13912), (1739, 12248), (3062, 6956), (3478, 6124)]