25216321

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 29566944

約数和(自身を除く): 4350623

約数列:

[1, 13, 17, 67, 131, 169, 221, 871, 1139, 1703, 2227, 2873, 8777, 11323, 14807, 22139, 28951, 114101, 149209, 192491, 376363, 1483313, 1939717, 25216321]

約数ペア:

[(1, 25216321), (13, 1939717), (17, 1483313), (67, 376363), (131, 192491), (169, 149209), (221, 114101), (871, 28951), (1139, 22139), (1703, 14807), (2227, 11323), (2873, 8777)]