63891025

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{21121}}^1$

素因数の和:21153

約数の個数: 18

約数和(自身を含む): 87086006

約数和(自身を除く): 23194981

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 21121, 105605, 232331, 528025, 1161655, 2555641, 5808275, 12778205, 63891025]

約数ペア:

[(1, 63891025), (5, 12778205), (11, 5808275), (25, 2555641), (55, 1161655), (121, 528025), (275, 232331), (605, 105605), (3025, 21121)]