20178880018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{1321}}^1\times {\mathrm{694339}}^1$

素因数の和:695673

約数の個数: 16

約数和(自身を含む): 33045029280

約数和(自身を除く): 12866149262

約数列:

[1, 2, 11, 22, 1321, 2642, 14531, 29062, 694339, 1388678, 7637729, 15275458, 917221819, 1834443638, 10089440009, 20178880018]

約数ペア:

[(1, 20178880018), (2, 10089440009), (11, 1834443638), (22, 917221819), (1321, 15275458), (2642, 7637729), (14531, 1388678), (29062, 694339)]