20137491

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:353

約数の個数: 40

約数和(自身を含む): 33297264

約数和(自身を除く): 13159773

約数列:

[1, 3, 9, 11, 27, 33, 81, 97, 99, 233, 291, 297, 699, 873, 891, 1067, 2097, 2563, 2619, 3201, 6291, 7689, 7857, 9603, 18873, 22601, 23067, 28809, 67803, 69201, 86427, 203409, 207603, 248611, 610227, 745833, 1830681, 2237499, 6712497, 20137491]

約数ペア:

[(1, 20137491), (3, 6712497), (9, 2237499), (11, 1830681), (27, 745833), (33, 610227), (81, 248611), (97, 207603), (99, 203409), (233, 86427), (291, 69201), (297, 67803), (699, 28809), (873, 23067), (891, 22601), (1067, 18873), (2097, 9603), (2563, 7857), (2619, 7689), (3201, 6291)]