20884806

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:677

約数の個数: 48

約数和(自身を含む): 48370608

約数和(自身を除く): 27485802

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 131, 153, 262, 306, 393, 521, 786, 1042, 1179, 1563, 2227, 2358, 3126, 4454, 4689, 6681, 8857, 9378, 13362, 17714, 20043, 26571, 40086, 53142, 68251, 79713, 136502, 159426, 204753, 409506, 614259, 1160267, 1228518, 2320534, 3480801, 6961602, 10442403, 20884806]

約数ペア:

[(1, 20884806), (2, 10442403), (3, 6961602), (6, 3480801), (9, 2320534), (17, 1228518), (18, 1160267), (34, 614259), (51, 409506), (102, 204753), (131, 159426), (153, 136502), (262, 79713), (306, 68251), (393, 53142), (521, 40086), (786, 26571), (1042, 20043), (1179, 17714), (1563, 13362), (2227, 9378), (2358, 8857), (3126, 6681), (4454, 4689)]