21986596

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{359}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 17385884

約数列:

[1, 2, 4, 61, 122, 244, 251, 359, 502, 718, 1004, 1436, 15311, 21899, 30622, 43798, 61244, 87596, 90109, 180218, 360436, 5496649, 10993298, 21986596]

約数ペア:

[(1, 21986596), (2, 10993298), (4, 5496649), (61, 360436), (122, 180218), (244, 90109), (251, 87596), (359, 61244), (502, 43798), (718, 30622), (1004, 21899), (1436, 15311)]