19957675

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{569}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 26292960

約数和(自身を除く): 6335285

約数列:

[1, 5, 23, 25, 61, 115, 305, 569, 575, 1403, 1525, 2845, 7015, 13087, 14225, 34709, 35075, 65435, 173545, 327175, 798307, 867725, 3991535, 19957675]

約数ペア:

[(1, 19957675), (5, 3991535), (23, 867725), (25, 798307), (61, 327175), (115, 173545), (305, 65435), (569, 35075), (575, 34709), (1403, 14225), (1525, 13087), (2845, 7015)]