21000887963

素因数分解:

${\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1\times {\mathrm{773}}^1$

素因数の和:1235

約数の個数: 32

約数和(自身を含む): 23525240832

約数和(自身を除く): 2524352869

約数列:

[1, 11, 67, 191, 193, 737, 773, 2101, 2123, 8503, 12797, 12931, 36863, 51791, 140767, 142241, 147643, 149189, 405493, 569701, 1624073, 1641079, 2469821, 9892081, 9995663, 27168031, 28495099, 108812891, 109952293, 313446089, 1909171633, 21000887963]

約数ペア:

[(1, 21000887963), (11, 1909171633), (67, 313446089), (191, 109952293), (193, 108812891), (737, 28495099), (773, 27168031), (2101, 9995663), (2123, 9892081), (8503, 2469821), (12797, 1641079), (12931, 1624073), (36863, 569701), (51791, 405493), (140767, 149189), (142241, 147643)]