20200257

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 36860928

約数和(自身を除く): 16660671

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 103, 231, 283, 309, 693, 721, 849, 927, 1133, 1981, 2163, 2547, 3113, 3399, 5943, 6489, 7931, 9339, 10197, 17829, 21791, 23793, 28017, 29149, 65373, 71379, 87447, 196119, 204043, 262341, 320639, 612129, 961917, 1836387, 2244473, 2885751, 6733419, 20200257]

約数ペア:

[(1, 20200257), (3, 6733419), (7, 2885751), (9, 2244473), (11, 1836387), (21, 961917), (33, 612129), (63, 320639), (77, 262341), (99, 204043), (103, 196119), (231, 87447), (283, 71379), (309, 65373), (693, 29149), (721, 28017), (849, 23793), (927, 21791), (1133, 17829), (1981, 10197), (2163, 9339), (2547, 7931), (3113, 6489), (3399, 5943)]