18717728001

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1259}}^1\times {\mathrm{5323}}^1$

素因数の和:6618

約数の個数: 48

約数和(自身を含む): 30589574400

約数和(自身を除く): 11871846399

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 1259, 2793, 3777, 5323, 8813, 15969, 23921, 26439, 37261, 61691, 71763, 101137, 111783, 167447, 185073, 260827, 303411, 502341, 707959, 782481, 1172129, 2123877, 3516387, 4955713, 6701657, 14867139, 20104971, 46911599, 127331483, 140734797, 328381193, 381994449, 891320381, 985143579, 2673961143, 6239242667, 18717728001]

約数ペア:

[(1, 18717728001), (3, 6239242667), (7, 2673961143), (19, 985143579), (21, 891320381), (49, 381994449), (57, 328381193), (133, 140734797), (147, 127331483), (399, 46911599), (931, 20104971), (1259, 14867139), (2793, 6701657), (3777, 4955713), (5323, 3516387), (8813, 2123877), (15969, 1172129), (23921, 782481), (26439, 707959), (37261, 502341), (61691, 303411), (71763, 260827), (101137, 185073), (111783, 167447)]