21289605

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{2683}}^1$

素因数の和:2737

約数の個数: 24

約数和(自身を含む): 35622048

約数和(自身を除く): 14332443

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 529, 1587, 2645, 2683, 7935, 8049, 13415, 40245, 61709, 185127, 308545, 925635, 1419307, 4257921, 7096535, 21289605]

約数ペア:

[(1, 21289605), (3, 7096535), (5, 4257921), (15, 1419307), (23, 925635), (69, 308545), (115, 185127), (345, 61709), (529, 40245), (1587, 13415), (2645, 8049), (2683, 7935)]