18967865

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 27170304

約数和(自身を除く): 8202439

約数列:

[1, 5, 7, 35, 37, 97, 151, 185, 259, 485, 679, 755, 1057, 1295, 3395, 3589, 5285, 5587, 14647, 17945, 25123, 27935, 39109, 73235, 102529, 125615, 195545, 512645, 541939, 2709695, 3793573, 18967865]

約数ペア:

[(1, 18967865), (5, 3793573), (7, 2709695), (35, 541939), (37, 512645), (97, 195545), (151, 125615), (185, 102529), (259, 73235), (485, 39109), (679, 27935), (755, 25123), (1057, 17945), (1295, 14647), (3395, 5587), (3589, 5285)]