21135952

素因数分解:

$2^4\times {\mathrm{617}}^1\times {\mathrm{2141}}^1$

素因数の和:2766

約数の個数: 20

約数和(自身を含む): 41036436

約数和(自身を除く): 19900484

約数列:

[1, 2, 4, 8, 16, 617, 1234, 2141, 2468, 4282, 4936, 8564, 9872, 17128, 34256, 1320997, 2641994, 5283988, 10567976, 21135952]

約数ペア:

[(1, 21135952), (2, 10567976), (4, 5283988), (8, 2641994), (16, 1320997), (617, 34256), (1234, 17128), (2141, 9872), (2468, 8564), (4282, 4936)]