21870849

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7283}}^1$

素因数の和:7317

約数の個数: 32

約数和(自身を含む): 39158784

約数和(自身を除く): 17287935

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 7283, 21849, 50981, 80113, 94679, 152943, 240339, 284037, 560791, 662753, 1041469, 1682373, 1988259, 3124407, 7290283, 21870849]

約数ペア:

[(1, 21870849), (3, 7290283), (7, 3124407), (11, 1988259), (13, 1682373), (21, 1041469), (33, 662753), (39, 560791), (77, 284037), (91, 240339), (143, 152943), (231, 94679), (273, 80113), (429, 50981), (1001, 21849), (3003, 7283)]