20479828

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{827}}^1$

素因数の和:1023

約数の個数: 24

約数和(自身を含む): 37001664

約数和(自身を除く): 16521836

約数列:

[1, 2, 4, 41, 82, 151, 164, 302, 604, 827, 1654, 3308, 6191, 12382, 24764, 33907, 67814, 124877, 135628, 249754, 499508, 5119957, 10239914, 20479828]

約数ペア:

[(1, 20479828), (2, 10239914), (4, 5119957), (41, 499508), (82, 249754), (151, 135628), (164, 124877), (302, 67814), (604, 33907), (827, 24764), (1654, 12382), (3308, 6191)]