31400831

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:443

約数の個数: 24

約数和(自身を含む): 39887232

約数和(自身を除く): 8486401

約数列:

[1, 7, 11, 77, 121, 131, 283, 847, 917, 1441, 1981, 3113, 10087, 15851, 21791, 34243, 37073, 110957, 239701, 259511, 407803, 2854621, 4485833, 31400831]

約数ペア:

[(1, 31400831), (7, 4485833), (11, 2854621), (77, 407803), (121, 259511), (131, 239701), (283, 110957), (847, 37073), (917, 34243), (1441, 21791), (1981, 15851), (3113, 10087)]