20439724

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{257}}^1\times {\mathrm{337}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 36625680

約数和(自身を除く): 16185956

約数列:

[1, 2, 4, 59, 118, 236, 257, 337, 514, 674, 1028, 1348, 15163, 19883, 30326, 39766, 60652, 79532, 86609, 173218, 346436, 5109931, 10219862, 20439724]

約数ペア:

[(1, 20439724), (2, 10219862), (4, 5109931), (59, 346436), (118, 173218), (236, 86609), (257, 79532), (337, 60652), (514, 39766), (674, 30326), (1028, 19883), (1348, 15163)]