201616961

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4021}}^1$

素因数の和:4089

約数の個数: 32

約数和(自身を含む): 270278400

約数和(自身を除く): 68661439

約数列:

[1, 7, 13, 19, 29, 91, 133, 203, 247, 377, 551, 1729, 2639, 3857, 4021, 7163, 28147, 50141, 52273, 76399, 116609, 365911, 534793, 816263, 993187, 1515917, 2215571, 6952309, 10611419, 15508997, 28802423, 201616961]

約数ペア:

[(1, 201616961), (7, 28802423), (13, 15508997), (19, 10611419), (29, 6952309), (91, 2215571), (133, 1515917), (203, 993187), (247, 816263), (377, 534793), (551, 365911), (1729, 116609), (2639, 76399), (3857, 52273), (4021, 50141), (7163, 28147)]