21012201

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5653}}^1$

素因数の和:5725

約数の個数: 24

約数和(自身を含む): 35280960

約数和(自身を除く): 14268759

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5653, 16959, 39571, 50877, 118713, 333527, 356139, 1000581, 2334689, 3001743, 7004067, 21012201]

約数ペア:

[(1, 21012201), (3, 7004067), (7, 3001743), (9, 2334689), (21, 1000581), (59, 356139), (63, 333527), (177, 118713), (413, 50877), (531, 39571), (1239, 16959), (3717, 5653)]