19815906

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2657}}^1$

素因数の和:2786

約数の個数: 32

約数和(自身を含む): 43633728

約数和(自身を除く): 23817822

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 113, 226, 339, 678, 1243, 2486, 2657, 3729, 5314, 7458, 7971, 15942, 29227, 58454, 87681, 175362, 300241, 600482, 900723, 1801446, 3302651, 6605302, 9907953, 19815906]

約数ペア:

[(1, 19815906), (2, 9907953), (3, 6605302), (6, 3302651), (11, 1801446), (22, 900723), (33, 600482), (66, 300241), (113, 175362), (226, 87681), (339, 58454), (678, 29227), (1243, 15942), (2486, 7971), (2657, 7458), (3729, 5314)]