21993478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{2927}}^1$

素因数の和:2976

約数の個数: 24

約数和(自身を含む): 37753632

約数和(自身を除く): 15760154

約数列:

[1, 2, 13, 17, 26, 34, 221, 289, 442, 578, 2927, 3757, 5854, 7514, 38051, 49759, 76102, 99518, 646867, 845903, 1293734, 1691806, 10996739, 21993478]

約数ペア:

[(1, 21993478), (2, 10996739), (13, 1691806), (17, 1293734), (26, 845903), (34, 646867), (221, 99518), (289, 76102), (442, 49759), (578, 38051), (2927, 7514), (3757, 5854)]