18257265

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 35642880

約数和(自身を除く): 17385615

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 101, 103, 117, 135, 195, 303, 309, 351, 505, 515, 585, 909, 927, 1313, 1339, 1515, 1545, 1755, 2727, 2781, 3939, 4017, 4545, 4635, 6565, 6695, 10403, 11817, 12051, 13635, 13905, 19695, 20085, 31209, 35451, 36153, 52015, 59085, 60255, 93627, 135239, 156045, 177255, 180765, 280881, 405717, 468135, 676195, 1217151, 1404405, 2028585, 3651453, 6085755, 18257265]

約数ペア:

[(1, 18257265), (3, 6085755), (5, 3651453), (9, 2028585), (13, 1404405), (15, 1217151), (27, 676195), (39, 468135), (45, 405717), (65, 280881), (101, 180765), (103, 177255), (117, 156045), (135, 135239), (195, 93627), (303, 60255), (309, 59085), (351, 52015), (505, 36153), (515, 35451), (585, 31209), (909, 20085), (927, 19695), (1313, 13905), (1339, 13635), (1515, 12051), (1545, 11817), (1755, 10403), (2727, 6695), (2781, 6565), (3939, 4635), (4017, 4545)]