20815538

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{359}}^1\times {\mathrm{547}}^1$

素因数の和:961

約数の個数: 16

約数和(自身を含む): 31959360

約数和(自身を除く): 11143822

約数列:

[1, 2, 53, 106, 359, 547, 718, 1094, 19027, 28991, 38054, 57982, 196373, 392746, 10407769, 20815538]

約数ペア:

[(1, 20815538), (2, 10407769), (53, 392746), (106, 196373), (359, 57982), (547, 38054), (718, 28991), (1094, 19027)]