21987331389

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{181}}^1\times {\mathrm{929}}^1$

素因数の和:1315

約数の個数: 64

約数和(自身を含む): 34122816000

約数和(自身を除く): 12135484611

約数列:

[1, 3, 9, 27, 29, 87, 167, 181, 261, 501, 543, 783, 929, 1503, 1629, 2787, 4509, 4843, 4887, 5249, 8361, 14529, 15747, 25083, 26941, 30227, 43587, 47241, 80823, 90681, 130761, 141723, 155143, 168149, 242469, 272043, 465429, 504447, 727407, 816129, 876583, 1396287, 1513341, 2629749, 4188861, 4499147, 4540023, 4876321, 7889247, 13497441, 14628963, 23667741, 28080883, 40492323, 43886889, 84242649, 121476969, 131660667, 252727947, 758183841, 814345607, 2443036821, 7329110463, 21987331389]

約数ペア:

[(1, 21987331389), (3, 7329110463), (9, 2443036821), (27, 814345607), (29, 758183841), (87, 252727947), (167, 131660667), (181, 121476969), (261, 84242649), (501, 43886889), (543, 40492323), (783, 28080883), (929, 23667741), (1503, 14628963), (1629, 13497441), (2787, 7889247), (4509, 4876321), (4843, 4540023), (4887, 4499147), (5249, 4188861), (8361, 2629749), (14529, 1513341), (15747, 1396287), (25083, 876583), (26941, 816129), (30227, 727407), (43587, 504447), (47241, 465429), (80823, 272043), (90681, 242469), (130761, 168149), (141723, 155143)]