20937844

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{383}}^1$

素因数の和:639

約数の個数: 24

約数和(自身を含む): 37416960

約数和(自身を除く): 16479116

約数列:

[1, 2, 4, 79, 158, 173, 316, 346, 383, 692, 766, 1532, 13667, 27334, 30257, 54668, 60514, 66259, 121028, 132518, 265036, 5234461, 10468922, 20937844]

約数ペア:

[(1, 20937844), (2, 10468922), (4, 5234461), (79, 265036), (158, 132518), (173, 121028), (316, 66259), (346, 60514), (383, 54668), (692, 30257), (766, 27334), (1532, 13667)]