21764028

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1153}}^1$

素因数の和:1195

約数の個数: 72

約数和(自身を含む): 60164944

約数和(自身を除く): 38400916

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 121, 132, 143, 156, 242, 286, 363, 429, 484, 572, 726, 858, 1153, 1452, 1573, 1716, 2306, 3146, 3459, 4612, 4719, 6292, 6918, 9438, 12683, 13836, 14989, 18876, 25366, 29978, 38049, 44967, 50732, 59956, 76098, 89934, 139513, 152196, 164879, 179868, 279026, 329758, 418539, 494637, 558052, 659516, 837078, 989274, 1674156, 1813669, 1978548, 3627338, 5441007, 7254676, 10882014, 21764028]

約数ペア:

[(1, 21764028), (2, 10882014), (3, 7254676), (4, 5441007), (6, 3627338), (11, 1978548), (12, 1813669), (13, 1674156), (22, 989274), (26, 837078), (33, 659516), (39, 558052), (44, 494637), (52, 418539), (66, 329758), (78, 279026), (121, 179868), (132, 164879), (143, 152196), (156, 139513), (242, 89934), (286, 76098), (363, 59956), (429, 50732), (484, 44967), (572, 38049), (726, 29978), (858, 25366), (1153, 18876), (1452, 14989), (1573, 13836), (1716, 12683), (2306, 9438), (3146, 6918), (3459, 6292), (4612, 4719)]