19816948

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{241}}^1\times {\mathrm{337}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 35499464

約数和(自身を除く): 15682516

約数列:

[1, 2, 4, 61, 122, 241, 244, 337, 482, 674, 964, 1348, 14701, 20557, 29402, 41114, 58804, 81217, 82228, 162434, 324868, 4954237, 9908474, 19816948]

約数ペア:

[(1, 19816948), (2, 9908474), (4, 4954237), (61, 324868), (122, 162434), (241, 82228), (244, 81217), (337, 58804), (482, 41114), (674, 29402), (964, 20557), (1348, 14701)]