16805439

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4373}}^1$

素因数の和:4447

約数の個数: 24

約数和(自身を含む): 28203552

約数和(自身を除く): 11398113

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 4373, 13119, 30611, 39357, 91833, 266753, 275499, 800259, 1867271, 2400777, 5601813, 16805439]

約数ペア:

[(1, 16805439), (3, 5601813), (7, 2400777), (9, 1867271), (21, 800259), (61, 275499), (63, 266753), (183, 91833), (427, 39357), (549, 30611), (1281, 13119), (3843, 4373)]