18447741

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5437}}^1$

素因数の和:5485

約数の個数: 24

約数和(自身を含む): 29691480

約数和(自身を除く): 11243739

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 5437, 16311, 48933, 70681, 157673, 212043, 473019, 636129, 1419057, 2049749, 6149247, 18447741]

約数ペア:

[(1, 18447741), (3, 6149247), (9, 2049749), (13, 1419057), (29, 636129), (39, 473019), (87, 212043), (117, 157673), (261, 70681), (377, 48933), (1131, 16311), (3393, 5437)]