21005842

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{607}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 37384704

約数和(自身を除く): 16378862

約数列:

[1, 2, 11, 13, 22, 26, 121, 143, 242, 286, 607, 1214, 1331, 1573, 2662, 3146, 6677, 7891, 13354, 15782, 17303, 34606, 73447, 86801, 146894, 173602, 807917, 954811, 1615834, 1909622, 10502921, 21005842]

約数ペア:

[(1, 21005842), (2, 10502921), (11, 1909622), (13, 1615834), (22, 954811), (26, 807917), (121, 173602), (143, 146894), (242, 86801), (286, 73447), (607, 34606), (1214, 17303), (1331, 15782), (1573, 13354), (2662, 7891), (3146, 6677)]