21750638

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 41899680

約数和(自身を除く): 20149042

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 169, 182, 203, 317, 338, 377, 406, 634, 754, 1183, 2219, 2366, 2639, 4121, 4438, 4901, 5278, 8242, 9193, 9802, 18386, 28847, 34307, 53573, 57694, 64351, 68614, 107146, 119509, 128702, 239018, 375011, 750022, 836563, 1553617, 1673126, 3107234, 10875319, 21750638]

約数ペア:

[(1, 21750638), (2, 10875319), (7, 3107234), (13, 1673126), (14, 1553617), (26, 836563), (29, 750022), (58, 375011), (91, 239018), (169, 128702), (182, 119509), (203, 107146), (317, 68614), (338, 64351), (377, 57694), (406, 53573), (634, 34307), (754, 28847), (1183, 18386), (2219, 9802), (2366, 9193), (2639, 8242), (4121, 5278), (4438, 4901)]