21107619

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{809}}^1$

素因数の和:1051

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 11914461

約数列:

[1, 3, 9, 13, 39, 117, 223, 669, 809, 2007, 2427, 2899, 7281, 8697, 10517, 26091, 31551, 94653, 180407, 541221, 1623663, 2345291, 7035873, 21107619]

約数ペア:

[(1, 21107619), (3, 7035873), (9, 2345291), (13, 1623663), (39, 541221), (117, 180407), (223, 94653), (669, 31551), (809, 26091), (2007, 10517), (2427, 8697), (2899, 7281)]