21727765

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:972

約数の個数: 16

約数和(自身を含む): 26830080

約数和(自身を除く): 5102315

約数列:

[1, 5, 67, 79, 335, 395, 821, 4105, 5293, 26465, 55007, 64859, 275035, 324295, 4345553, 21727765]

約数ペア:

[(1, 21727765), (5, 4345553), (67, 324295), (79, 275035), (335, 64859), (395, 55007), (821, 26465), (4105, 5293)]