21759507

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1847}}^1$

素因数の和:1888

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 19753965

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 119, 153, 187, 231, 357, 561, 693, 1071, 1309, 1683, 1847, 3927, 5541, 11781, 12929, 16623, 20317, 31399, 38787, 60951, 94197, 116361, 142219, 182853, 219793, 282591, 345389, 426657, 659379, 1036167, 1279971, 1978137, 2417723, 3108501, 7253169, 21759507]

約数ペア:

[(1, 21759507), (3, 7253169), (7, 3108501), (9, 2417723), (11, 1978137), (17, 1279971), (21, 1036167), (33, 659379), (51, 426657), (63, 345389), (77, 282591), (99, 219793), (119, 182853), (153, 142219), (187, 116361), (231, 94197), (357, 60951), (561, 38787), (693, 31399), (1071, 20317), (1309, 16623), (1683, 12929), (1847, 11781), (3927, 5541)]