213544401

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{757}}^1$

素因数の和:894

約数の個数: 48

約数和(自身を含む): 352560960

約数和(自身を除く): 139016559

約数列:

[1, 3, 7, 19, 21, 49, 57, 101, 133, 147, 303, 399, 707, 757, 931, 1919, 2121, 2271, 2793, 4949, 5299, 5757, 13433, 14383, 14847, 15897, 37093, 40299, 43149, 76457, 94031, 100681, 111279, 229371, 282093, 302043, 535199, 704767, 1452683, 1605597, 2114301, 3746393, 4358049, 10168781, 11239179, 30506343, 71181467, 213544401]

約数ペア:

[(1, 213544401), (3, 71181467), (7, 30506343), (19, 11239179), (21, 10168781), (49, 4358049), (57, 3746393), (101, 2114301), (133, 1605597), (147, 1452683), (303, 704767), (399, 535199), (707, 302043), (757, 282093), (931, 229371), (1919, 111279), (2121, 100681), (2271, 94031), (2793, 76457), (4949, 43149), (5299, 40299), (5757, 37093), (13433, 15897), (14383, 14847)]