21095577

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 32008704

約数和(自身を除く): 10913127

約数列:

[1, 3, 9, 23, 69, 207, 223, 457, 669, 1371, 2007, 4113, 5129, 10511, 15387, 31533, 46161, 94599, 101911, 305733, 917199, 2343953, 7031859, 21095577]

約数ペア:

[(1, 21095577), (3, 7031859), (9, 2343953), (23, 917199), (69, 305733), (207, 101911), (223, 94599), (457, 46161), (669, 31533), (1371, 15387), (2007, 10511), (4113, 5129)]