208051263

素因数分解:

$3^2\times 7^1\times {\mathrm{1657}}^1\times {\mathrm{1993}}^1$

素因数の和:3663

約数の個数: 24

約数和(自身を含む): 343829408

約数和(自身を除く): 135778145

約数列:

[1, 3, 7, 9, 21, 63, 1657, 1993, 4971, 5979, 11599, 13951, 14913, 17937, 34797, 41853, 104391, 125559, 3302401, 9907203, 23116807, 29721609, 69350421, 208051263]

約数ペア:

[(1, 208051263), (3, 69350421), (7, 29721609), (9, 23116807), (21, 9907203), (63, 3302401), (1657, 125559), (1993, 104391), (4971, 41853), (5979, 34797), (11599, 17937), (13951, 14913)]