31489155

素因数分解:

$3^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:239

約数の個数: 56

約数和(自身を含む): 58077648

約数和(自身を除く): 26588493

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 163, 243, 265, 405, 477, 489, 729, 795, 815, 1215, 1431, 1467, 2385, 2445, 3645, 4293, 4401, 7155, 7335, 8639, 12879, 13203, 21465, 22005, 25917, 38637, 39609, 43195, 64395, 66015, 77751, 118827, 129585, 193185, 198045, 233253, 388755, 594135, 699759, 1166265, 2099277, 3498795, 6297831, 10496385, 31489155]

約数ペア:

[(1, 31489155), (3, 10496385), (5, 6297831), (9, 3498795), (15, 2099277), (27, 1166265), (45, 699759), (53, 594135), (81, 388755), (135, 233253), (159, 198045), (163, 193185), (243, 129585), (265, 118827), (405, 77751), (477, 66015), (489, 64395), (729, 43195), (795, 39609), (815, 38637), (1215, 25917), (1431, 22005), (1467, 21465), (2385, 13203), (2445, 12879), (3645, 8639), (4293, 7335), (4401, 7155)]