20939425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3391}}^1$

素因数の和:3433

約数の個数: 24

約数和(自身を含む): 29442560

約数和(自身を除く): 8503135

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 3391, 6175, 16955, 44083, 64429, 84775, 220415, 322145, 837577, 1102075, 1610725, 4187885, 20939425]

約数ペア:

[(1, 20939425), (5, 4187885), (13, 1610725), (19, 1102075), (25, 837577), (65, 322145), (95, 220415), (247, 84775), (325, 64429), (475, 44083), (1235, 16955), (3391, 6175)]