21816489

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 31056480

約数和(自身を除く): 9239991

約数列:

[1, 3, 23, 59, 69, 177, 233, 529, 699, 1357, 1587, 4071, 5359, 13747, 16077, 31211, 41241, 93633, 123257, 316181, 369771, 948543, 7272163, 21816489]

約数ペア:

[(1, 21816489), (3, 7272163), (23, 948543), (59, 369771), (69, 316181), (177, 123257), (233, 93633), (529, 41241), (699, 31211), (1357, 16077), (1587, 13747), (4071, 5359)]