20404636

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6449}}^1$

素因数の和:6573

約数の個数: 24

約数和(自身を含む): 41176800

約数和(自身を除く): 20772164

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 6449, 12898, 25796, 45143, 90286, 180572, 728737, 1457474, 2914948, 5101159, 10202318, 20404636]

約数ペア:

[(1, 20404636), (2, 10202318), (4, 5101159), (7, 2914948), (14, 1457474), (28, 728737), (113, 180572), (226, 90286), (452, 45143), (791, 25796), (1582, 12898), (3164, 6449)]