31900011

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:164

約数の個数: 64

約数和(自身を含む): 53996544

約数和(自身を除く): 22096533

約数列:

[1, 3, 11, 13, 23, 33, 39, 53, 61, 69, 143, 159, 183, 253, 299, 429, 583, 671, 689, 759, 793, 897, 1219, 1403, 1749, 2013, 2067, 2379, 3233, 3289, 3657, 4209, 7579, 8723, 9699, 9867, 13409, 15433, 15847, 18239, 22737, 26169, 35563, 40227, 42029, 46299, 47541, 54717, 74359, 106689, 126087, 174317, 200629, 223077, 462319, 522951, 601887, 817949, 966667, 1386957, 2453847, 2900001, 10633337, 31900011]

約数ペア:

[(1, 31900011), (3, 10633337), (11, 2900001), (13, 2453847), (23, 1386957), (33, 966667), (39, 817949), (53, 601887), (61, 522951), (69, 462319), (143, 223077), (159, 200629), (183, 174317), (253, 126087), (299, 106689), (429, 74359), (583, 54717), (671, 47541), (689, 46299), (759, 42029), (793, 40227), (897, 35563), (1219, 26169), (1403, 22737), (1749, 18239), (2013, 15847), (2067, 15433), (2379, 13409), (3233, 9867), (3289, 9699), (3657, 8723), (4209, 7579)]