20217425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1373}}^1$

素因数の和:1433

約数の個数: 24

約数和(自身を含む): 27260160

約数和(自身を除く): 7042735

約数列:

[1, 5, 19, 25, 31, 95, 155, 475, 589, 775, 1373, 2945, 6865, 14725, 26087, 34325, 42563, 130435, 212815, 652175, 808697, 1064075, 4043485, 20217425]

約数ペア:

[(1, 20217425), (5, 4043485), (19, 1064075), (25, 808697), (31, 652175), (95, 212815), (155, 130435), (475, 42563), (589, 34325), (775, 26087), (1373, 14725), (2945, 6865)]