18852795

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 36884016

約数和(自身を除く): 18031221

約数列:

[1, 3, 5, 9, 13, 15, 37, 39, 45, 65, 67, 111, 117, 169, 185, 195, 201, 333, 335, 481, 507, 555, 585, 603, 845, 871, 1005, 1443, 1521, 1665, 2405, 2479, 2535, 2613, 3015, 4329, 4355, 6253, 7215, 7437, 7605, 7839, 11323, 12395, 13065, 18759, 21645, 22311, 31265, 32227, 33969, 37185, 39195, 56277, 56615, 93795, 96681, 101907, 111555, 161135, 169845, 281385, 290043, 418951, 483405, 509535, 1256853, 1450215, 2094755, 3770559, 6284265, 18852795]

約数ペア:

[(1, 18852795), (3, 6284265), (5, 3770559), (9, 2094755), (13, 1450215), (15, 1256853), (37, 509535), (39, 483405), (45, 418951), (65, 290043), (67, 281385), (111, 169845), (117, 161135), (169, 111555), (185, 101907), (195, 96681), (201, 93795), (333, 56615), (335, 56277), (481, 39195), (507, 37185), (555, 33969), (585, 32227), (603, 31265), (845, 22311), (871, 21645), (1005, 18759), (1443, 13065), (1521, 12395), (1665, 11323), (2405, 7839), (2479, 7605), (2535, 7437), (2613, 7215), (3015, 6253), (4329, 4355)]