31539651

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2051

約数の個数: 32

約数和(自身を含む): 50765568

約数和(自身を除く): 19225917

約数列:

[1, 3, 11, 13, 33, 37, 39, 111, 143, 407, 429, 481, 1221, 1443, 1987, 5291, 5961, 15873, 21857, 25831, 65571, 73519, 77493, 220557, 284141, 808709, 852423, 955747, 2426127, 2867241, 10513217, 31539651]

約数ペア:

[(1, 31539651), (3, 10513217), (11, 2867241), (13, 2426127), (33, 955747), (37, 852423), (39, 808709), (111, 284141), (143, 220557), (407, 77493), (429, 73519), (481, 65571), (1221, 25831), (1443, 21857), (1987, 15873), (5291, 5961)]