20157893551551

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1\times {\mathrm{215123}}^1$

素因数の和:215680

約数の個数: 64

約数和(自身を含む): 31337859990528

約数和(自身を除く): 11179966438977

約数列:

[1, 3, 7, 21, 97, 157, 291, 293, 471, 679, 879, 1099, 2037, 2051, 3297, 6153, 15229, 28421, 45687, 46001, 85263, 106603, 138003, 198947, 215123, 319809, 322007, 596841, 645369, 966021, 1505861, 4462097, 4517583, 13386291, 20866931, 31234679, 33774311, 62600793, 63031039, 93704037, 101322933, 146068517, 189093117, 236420177, 438205551, 441217273, 709260531, 1323651819, 3276108167, 6114010783, 9828324501, 9895873123, 18342032349, 22932757169, 29687619369, 42798075481, 68798271507, 69271111861, 128394226443, 207813335583, 959899692931, 2879699078793, 6719297850517, 20157893551551]

約数ペア:

[(1, 20157893551551), (3, 6719297850517), (7, 2879699078793), (21, 959899692931), (97, 207813335583), (157, 128394226443), (291, 69271111861), (293, 68798271507), (471, 42798075481), (679, 29687619369), (879, 22932757169), (1099, 18342032349), (2037, 9895873123), (2051, 9828324501), (3297, 6114010783), (6153, 3276108167), (15229, 1323651819), (28421, 709260531), (45687, 441217273), (46001, 438205551), (85263, 236420177), (106603, 189093117), (138003, 146068517), (198947, 101322933), (215123, 93704037), (319809, 63031039), (322007, 62600793), (596841, 33774311), (645369, 31234679), (966021, 20866931), (1505861, 13386291), (4462097, 4517583)]