20601774

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:745

約数の個数: 48

約数和(自身を含む): 47005920

約数和(自身を除く): 26404146

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 61, 87, 122, 174, 183, 261, 366, 522, 549, 647, 1098, 1294, 1769, 1941, 3538, 3882, 5307, 5823, 10614, 11646, 15921, 18763, 31842, 37526, 39467, 56289, 78934, 112578, 118401, 168867, 236802, 337734, 355203, 710406, 1144543, 2289086, 3433629, 6867258, 10300887, 20601774]

約数ペア:

[(1, 20601774), (2, 10300887), (3, 6867258), (6, 3433629), (9, 2289086), (18, 1144543), (29, 710406), (58, 355203), (61, 337734), (87, 236802), (122, 168867), (174, 118401), (183, 112578), (261, 78934), (366, 56289), (522, 39467), (549, 37526), (647, 31842), (1098, 18763), (1294, 15921), (1769, 11646), (1941, 10614), (3538, 5823), (3882, 5307)]