18729945

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 35420112

約数和(自身を除く): 16690167

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 101, 117, 195, 303, 317, 505, 585, 909, 951, 1313, 1515, 1585, 2853, 3939, 4121, 4545, 4755, 6565, 11817, 12363, 14265, 19695, 20605, 32017, 37089, 59085, 61815, 96051, 160085, 185445, 288153, 416221, 480255, 1248663, 1440765, 2081105, 3745989, 6243315, 18729945]

約数ペア:

[(1, 18729945), (3, 6243315), (5, 3745989), (9, 2081105), (13, 1440765), (15, 1248663), (39, 480255), (45, 416221), (65, 288153), (101, 185445), (117, 160085), (195, 96051), (303, 61815), (317, 59085), (505, 37089), (585, 32017), (909, 20605), (951, 19695), (1313, 14265), (1515, 12363), (1585, 11817), (2853, 6565), (3939, 4755), (4121, 4545)]