212920911

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{57283}}^1$

素因数の和:57355

約数の個数: 24

約数和(自身を含む): 357452160

約数和(自身を除く): 144531249

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 57283, 171849, 400981, 515547, 1202943, 3379697, 3608829, 10139091, 23657879, 30417273, 70973637, 212920911]

約数ペア:

[(1, 212920911), (3, 70973637), (7, 30417273), (9, 23657879), (21, 10139091), (59, 3608829), (63, 3379697), (177, 1202943), (413, 515547), (531, 400981), (1239, 171849), (3717, 57283)]