20609175

素因数分解:

$3^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{2521}}^1$

素因数の和:2643

約数の個数: 24

約数和(自身を含む): 34400080

約数和(自身を除く): 13790905

約数列:

[1, 3, 5, 15, 25, 75, 109, 327, 545, 1635, 2521, 2725, 7563, 8175, 12605, 37815, 63025, 189075, 274789, 824367, 1373945, 4121835, 6869725, 20609175]

約数ペア:

[(1, 20609175), (3, 6869725), (5, 4121835), (15, 1373945), (25, 824367), (75, 274789), (109, 189075), (327, 63025), (545, 37815), (1635, 12605), (2521, 8175), (2725, 7563)]