21180493436

素因数分解:

$2^2\times {\mathrm{131}}^1\times {\mathrm{251}}^1\times {\mathrm{161039}}^1$

素因数の和:161425

約数の個数: 24

約数和(自身を含む): 37497841920

約数和(自身を除く): 16317348484

約数列:

[1, 2, 4, 131, 251, 262, 502, 524, 1004, 32881, 65762, 131524, 161039, 322078, 644156, 21096109, 40420789, 42192218, 80841578, 84384436, 161683156, 5295123359, 10590246718, 21180493436]

約数ペア:

[(1, 21180493436), (2, 10590246718), (4, 5295123359), (131, 161683156), (251, 84384436), (262, 80841578), (502, 42192218), (524, 40420789), (1004, 21096109), (32881, 644156), (65762, 322078), (131524, 161039)]