18240741

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:127

約数の個数: 48

約数和(自身を含む): 30187200

約数和(自身を除く): 11946459

約数列:

[1, 3, 9, 19, 27, 31, 37, 57, 93, 111, 171, 279, 333, 513, 589, 703, 837, 961, 999, 1147, 1767, 2109, 2883, 3441, 5301, 6327, 8649, 10323, 15903, 18259, 18981, 21793, 25947, 30969, 35557, 54777, 65379, 106671, 164331, 196137, 320013, 492993, 588411, 675583, 960039, 2026749, 6080247, 18240741]

約数ペア:

[(1, 18240741), (3, 6080247), (9, 2026749), (19, 960039), (27, 675583), (31, 588411), (37, 492993), (57, 320013), (93, 196137), (111, 164331), (171, 106671), (279, 65379), (333, 54777), (513, 35557), (589, 30969), (703, 25947), (837, 21793), (961, 18981), (999, 18259), (1147, 15903), (1767, 10323), (2109, 8649), (2883, 6327), (3441, 5301)]