21265348

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{4049}}^1$

素因数の和:4167

約数の個数: 24

約数和(自身を含む): 40483800

約数和(自身を除く): 19218452

約数列:

[1, 2, 4, 13, 26, 52, 101, 202, 404, 1313, 2626, 4049, 5252, 8098, 16196, 52637, 105274, 210548, 408949, 817898, 1635796, 5316337, 10632674, 21265348]

約数ペア:

[(1, 21265348), (2, 10632674), (4, 5316337), (13, 1635796), (26, 817898), (52, 408949), (101, 210548), (202, 105274), (404, 52637), (1313, 16196), (2626, 8098), (4049, 5252)]