21139929220

素因数分解:

$2^2\times 5^1\times {\mathrm{7151}}^1\times {\mathrm{147811}}^1$

素因数の和:154971

約数の個数: 24

約数和(自身を含む): 44400359808

約数和(自身を除く): 23260430588

約数列:

[1, 2, 4, 5, 10, 20, 7151, 14302, 28604, 35755, 71510, 143020, 147811, 295622, 591244, 739055, 1478110, 2956220, 1056996461, 2113992922, 4227985844, 5284982305, 10569964610, 21139929220]

約数ペア:

[(1, 21139929220), (2, 10569964610), (4, 5284982305), (5, 4227985844), (10, 2113992922), (20, 1056996461), (7151, 2956220), (14302, 1478110), (28604, 739055), (35755, 591244), (71510, 295622), (143020, 147811)]