210819965

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{4139}}^1$

素因数の和:4372

約数の個数: 16

約数和(自身を含む): 258733440

約数和(自身を除く): 47913475

約数列:

[1, 5, 61, 167, 305, 835, 4139, 10187, 20695, 50935, 252479, 691213, 1262395, 3456065, 42163993, 210819965]

約数ペア:

[(1, 210819965), (5, 42163993), (61, 3456065), (167, 1262395), (305, 691213), (835, 252479), (4139, 50935), (10187, 20695)]