2021292455

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4442401}}^1$

素因数の和:4442426

約数の個数: 16

約数和(自身を含む): 2985294144

約数和(自身を除く): 964001689

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 4442401, 22212005, 31096807, 57751213, 155484035, 288756065, 404258491, 2021292455]

約数ペア:

[(1, 2021292455), (5, 404258491), (7, 288756065), (13, 155484035), (35, 57751213), (65, 31096807), (91, 22212005), (455, 4442401)]