21260655

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36343}}^1$

素因数の和:36367

約数の個数: 24

約数和(自身を含む): 39687648

約数和(自身を除く): 18426993

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 36343, 109029, 181715, 327087, 472459, 545145, 1417377, 1635435, 2362295, 4252131, 7086885, 21260655]

約数ペア:

[(1, 21260655), (3, 7086885), (5, 4252131), (9, 2362295), (13, 1635435), (15, 1417377), (39, 545145), (45, 472459), (65, 327087), (117, 181715), (195, 109029), (585, 36343)]