18988648317

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1\times {\mathrm{409}}^1$

素因数の和:848

約数の個数: 80

約数和(自身を含む): 30337507200

約数和(自身を除く): 11348858883

約数列:

[1, 3, 9, 19, 27, 57, 81, 97, 171, 291, 311, 409, 513, 873, 933, 1227, 1539, 1843, 2619, 2799, 3681, 5529, 5909, 7771, 7857, 8397, 11043, 16587, 17727, 23313, 25191, 30167, 33129, 39673, 49761, 53181, 69939, 90501, 119019, 127199, 149283, 159543, 209817, 271503, 357057, 381597, 478629, 573173, 629451, 753787, 814509, 1071171, 1144791, 1719519, 2261361, 2416781, 2443527, 3213513, 3434373, 5158557, 6784083, 7250343, 10303119, 12338303, 15475671, 20352249, 21751029, 37014909, 46427013, 61056747, 65253087, 111044727, 195759261, 234427757, 333134181, 703283271, 999402543, 2109849813, 6329549439, 18988648317]

約数ペア:

[(1, 18988648317), (3, 6329549439), (9, 2109849813), (19, 999402543), (27, 703283271), (57, 333134181), (81, 234427757), (97, 195759261), (171, 111044727), (291, 65253087), (311, 61056747), (409, 46427013), (513, 37014909), (873, 21751029), (933, 20352249), (1227, 15475671), (1539, 12338303), (1843, 10303119), (2619, 7250343), (2799, 6784083), (3681, 5158557), (5529, 3434373), (5909, 3213513), (7771, 2443527), (7857, 2416781), (8397, 2261361), (11043, 1719519), (16587, 1144791), (17727, 1071171), (23313, 814509), (25191, 753787), (30167, 629451), (33129, 573173), (39673, 478629), (49761, 381597), (53181, 357057), (69939, 271503), (90501, 209817), (119019, 159543), (127199, 149283)]