21491451

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7393}}^1$

素因数の和:7435

約数の個数: 24

約数和(自身を含む): 34603920

約数和(自身を除く): 13112469

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 7393, 22179, 66537, 125681, 140467, 377043, 421401, 1131129, 1264203, 2387939, 7163817, 21491451]

約数ペア:

[(1, 21491451), (3, 7163817), (9, 2387939), (17, 1264203), (19, 1131129), (51, 421401), (57, 377043), (153, 140467), (171, 125681), (323, 66537), (969, 22179), (2907, 7393)]