21426262

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3943}}^1$

素因数の和:3988

約数の個数: 32

約数和(自身を含む): 39755520

約数和(自身を除く): 18329258

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 143, 209, 247, 286, 418, 494, 2717, 3943, 5434, 7886, 43373, 51259, 74917, 86746, 102518, 149834, 563849, 824087, 973921, 1127698, 1648174, 1947842, 10713131, 21426262]

約数ペア:

[(1, 21426262), (2, 10713131), (11, 1947842), (13, 1648174), (19, 1127698), (22, 973921), (26, 824087), (38, 563849), (143, 149834), (209, 102518), (247, 86746), (286, 74917), (418, 51259), (494, 43373), (2717, 7886), (3943, 5434)]