21319595

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 28440720

約数和(自身を除く): 7121125

約数列:

[1, 5, 11, 55, 121, 131, 269, 605, 655, 1345, 1441, 2959, 7205, 14795, 15851, 32549, 35239, 79255, 162745, 176195, 387629, 1938145, 4263919, 21319595]

約数ペア:

[(1, 21319595), (5, 4263919), (11, 1938145), (55, 387629), (121, 176195), (131, 162745), (269, 79255), (605, 35239), (655, 32549), (1345, 15851), (1441, 14795), (2959, 7205)]