1280321

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:113

約数の個数: 24

約数和(自身を含む): 1662120

約数和(自身を除く): 381799

約数列:

[1, 7, 17, 29, 49, 53, 119, 203, 371, 493, 833, 901, 1421, 1537, 2597, 3451, 6307, 10759, 24157, 26129, 44149, 75313, 182903, 1280321]

約数ペア:

[(1, 1280321), (7, 182903), (17, 75313), (29, 44149), (49, 26129), (53, 24157), (119, 10759), (203, 6307), (371, 3451), (493, 2597), (833, 1537), (901, 1421)]