21131553790

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3851}}^1\times {\mathrm{5657}}^1$

素因数の和:9612

約数の個数: 32

約数和(自身を含む): 38445702624

約数和(自身を除く): 17314148834

約数列:

[1, 2, 5, 10, 97, 194, 485, 970, 3851, 5657, 7702, 11314, 19255, 28285, 38510, 56570, 373547, 548729, 747094, 1097458, 1867735, 2743645, 3735470, 5487290, 21785107, 43570214, 108925535, 217851070, 2113155379, 4226310758, 10565776895, 21131553790]

約数ペア:

[(1, 21131553790), (2, 10565776895), (5, 4226310758), (10, 2113155379), (97, 217851070), (194, 108925535), (485, 43570214), (970, 21785107), (3851, 5487290), (5657, 3735470), (7702, 2743645), (11314, 1867735), (19255, 1097458), (28285, 747094), (38510, 548729), (56570, 373547)]