20649436

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{257}}^1\times {\mathrm{379}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 37059120

約数和(自身を除く): 16409684

約数列:

[1, 2, 4, 53, 106, 212, 257, 379, 514, 758, 1028, 1516, 13621, 20087, 27242, 40174, 54484, 80348, 97403, 194806, 389612, 5162359, 10324718, 20649436]

約数ペア:

[(1, 20649436), (2, 10324718), (4, 5162359), (53, 389612), (106, 194806), (212, 97403), (257, 80348), (379, 54484), (514, 40174), (758, 27242), (1028, 20087), (1516, 13621)]