21711794

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43951}}^1$

素因数の和:43985

約数の個数: 16

約数和(自身を含む): 36919680

約数和(自身を除く): 15207886

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43951, 87902, 571363, 835069, 1142726, 1670138, 10855897, 21711794]

約数ペア:

[(1, 21711794), (2, 10855897), (13, 1670138), (19, 1142726), (26, 835069), (38, 571363), (247, 87902), (494, 43951)]