21157214

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{317}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 36542016

約数和(自身を除く): 15384802

約数列:

[1, 2, 13, 17, 26, 34, 151, 221, 302, 317, 442, 634, 1963, 2567, 3926, 4121, 5134, 5389, 8242, 10778, 33371, 47867, 66742, 70057, 95734, 140114, 622271, 813739, 1244542, 1627478, 10578607, 21157214]

約数ペア:

[(1, 21157214), (2, 10578607), (13, 1627478), (17, 1244542), (26, 813739), (34, 622271), (151, 140114), (221, 95734), (302, 70057), (317, 66742), (442, 47867), (634, 33371), (1963, 10778), (2567, 8242), (3926, 5389), (4121, 5134)]