20347341

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 32747520

約数和(自身を除く): 12400179

約数列:

[1, 3, 7, 21, 23, 69, 103, 161, 309, 409, 483, 721, 1227, 2163, 2369, 2863, 7107, 8589, 9407, 16583, 28221, 42127, 49749, 65849, 126381, 197547, 294889, 884667, 968921, 2906763, 6782447, 20347341]

約数ペア:

[(1, 20347341), (3, 6782447), (7, 2906763), (21, 968921), (23, 884667), (69, 294889), (103, 197547), (161, 126381), (309, 65849), (409, 49749), (483, 42127), (721, 28221), (1227, 16583), (2163, 9407), (2369, 8589), (2863, 7107)]