20199897991

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{659}}^1\times {\mathrm{2017}}^1$

素因数の和:2863

約数の個数: 32

約数和(自身を含む): 25060654080

約数和(自身を除く): 4860756089

約数列:

[1, 7, 13, 91, 167, 659, 1169, 2017, 2171, 4613, 8567, 14119, 15197, 26221, 59969, 110053, 183547, 336839, 770371, 1329203, 1430689, 2357873, 4378907, 9304421, 10014823, 17279639, 30652349, 120957473, 221976901, 1553838307, 2885699713, 20199897991]

約数ペア:

[(1, 20199897991), (7, 2885699713), (13, 1553838307), (91, 221976901), (167, 120957473), (659, 30652349), (1169, 17279639), (2017, 10014823), (2171, 9304421), (4613, 4378907), (8567, 2357873), (14119, 1430689), (15197, 1329203), (26221, 770371), (59969, 336839), (110053, 183547)]