21963205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{3877}}^1$

素因数の和:3996

約数の個数: 16

約数和(自身を含む): 29038464

約数和(自身を除く): 7075259

約数列:

[1, 5, 11, 55, 103, 515, 1133, 3877, 5665, 19385, 42647, 213235, 399331, 1996655, 4392641, 21963205]

約数ペア:

[(1, 21963205), (5, 4392641), (11, 1996655), (55, 399331), (103, 213235), (515, 42647), (1133, 19385), (3877, 5665)]