20872467

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{30119}}^1$

素因数の和:30143

約数の個数: 24

約数和(自身を含む): 37589760

約数和(自身を除く): 16717293

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30119, 90357, 210833, 271071, 331309, 632499, 993927, 1897497, 2319163, 2981781, 6957489, 20872467]

約数ペア:

[(1, 20872467), (3, 6957489), (7, 2981781), (9, 2319163), (11, 1897497), (21, 993927), (33, 632499), (63, 331309), (77, 271071), (99, 210833), (231, 90357), (693, 30119)]