21493234

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{317}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 16972046

約数列:

[1, 2, 7, 14, 29, 58, 167, 203, 317, 334, 406, 634, 1169, 2219, 2338, 4438, 4843, 9193, 9686, 18386, 33901, 52939, 64351, 67802, 105878, 128702, 370573, 741146, 1535231, 3070462, 10746617, 21493234]

約数ペア:

[(1, 21493234), (2, 10746617), (7, 3070462), (14, 1535231), (29, 741146), (58, 370573), (167, 128702), (203, 105878), (317, 67802), (334, 64351), (406, 52939), (634, 33901), (1169, 18386), (2219, 9686), (2338, 9193), (4438, 4843)]