21260673

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8231}}^1$

素因数の和:8285

約数の個数: 24

約数和(自身を含む): 35957376

約数和(自身を除く): 14696703

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 8231, 24693, 57617, 74079, 172851, 337471, 518553, 1012413, 2362297, 3037239, 7086891, 21260673]

約数ペア:

[(1, 21260673), (3, 7086891), (7, 3037239), (9, 2362297), (21, 1012413), (41, 518553), (63, 337471), (123, 172851), (287, 74079), (369, 57617), (861, 24693), (2583, 8231)]