20416990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{593}}^1$

素因数の和:924

約数の個数: 32

約数和(自身を含む): 40287456

約数和(自身を除く): 19870466

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 313, 593, 626, 1186, 1565, 2965, 3130, 3443, 5930, 6523, 6886, 13046, 17215, 32615, 34430, 65230, 185609, 371218, 928045, 1856090, 2041699, 4083398, 10208495, 20416990]

約数ペア:

[(1, 20416990), (2, 10208495), (5, 4083398), (10, 2041699), (11, 1856090), (22, 928045), (55, 371218), (110, 185609), (313, 65230), (593, 34430), (626, 32615), (1186, 17215), (1565, 13046), (2965, 6886), (3130, 6523), (3443, 5930)]