21906256

素因数分解:

$2^4\times {\mathrm{547}}^1\times {\mathrm{2503}}^1$

素因数の和:3058

約数の個数: 20

約数和(自身を含む): 42537952

約数和(自身を除く): 20631696

約数列:

[1, 2, 4, 8, 16, 547, 1094, 2188, 2503, 4376, 5006, 8752, 10012, 20024, 40048, 1369141, 2738282, 5476564, 10953128, 21906256]

約数ペア:

[(1, 21906256), (2, 10953128), (4, 5476564), (8, 2738282), (16, 1369141), (547, 40048), (1094, 20024), (2188, 10012), (2503, 8752), (4376, 5006)]