21123156965

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{599}}^1\times {\mathrm{414871}}^1$

素因数の和:415492

約数の個数: 16

約数和(自身を含む): 26883705600

約数和(自身を除く): 5760548635

約数列:

[1, 5, 17, 85, 599, 2995, 10183, 50915, 414871, 2074355, 7052807, 35264035, 248507729, 1242538645, 4224631393, 21123156965]

約数ペア:

[(1, 21123156965), (5, 4224631393), (17, 1242538645), (85, 248507729), (599, 35264035), (2995, 7052807), (10183, 2074355), (50915, 414871)]