20430669

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 32497920

約数和(自身を除く): 12067251

約数列:

[1, 3, 7, 21, 41, 61, 123, 183, 287, 389, 427, 861, 1167, 1281, 2501, 2723, 7503, 8169, 15949, 17507, 23729, 47847, 52521, 71187, 111643, 166103, 334929, 498309, 972889, 2918667, 6810223, 20430669]

約数ペア:

[(1, 20430669), (3, 6810223), (7, 2918667), (21, 972889), (41, 498309), (61, 334929), (123, 166103), (183, 111643), (287, 71187), (389, 52521), (427, 47847), (861, 23729), (1167, 17507), (1281, 15949), (2501, 8169), (2723, 7503)]