21549561

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{1723}}^1$

素因数の和:2116

約数の個数: 16

約数和(自身を含む): 31445760

約数和(自身を除く): 9896199

約数列:

[1, 3, 11, 33, 379, 1137, 1723, 4169, 5169, 12507, 18953, 56859, 653017, 1959051, 7183187, 21549561]

約数ペア:

[(1, 21549561), (3, 7183187), (11, 1959051), (33, 653017), (379, 56859), (1137, 18953), (1723, 12507), (4169, 5169)]