2021189653

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{738469}}^1$

素因数の和:738516

約数の個数: 16

約数和(自身を含む): 2552152320

約数和(自身を除く): 530962667

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 738469, 5169283, 12553973, 16984787, 87877811, 118893509, 288741379, 2021189653]

約数ペア:

[(1, 2021189653), (7, 288741379), (17, 118893509), (23, 87877811), (119, 16984787), (161, 12553973), (391, 5169283), (2737, 738469)]