21038957279

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 24508431360

約数和(自身を除く): 3469474081

約数列:

[1, 19, 23, 37, 61, 83, 257, 437, 703, 851, 1159, 1403, 1577, 1909, 2257, 3071, 4883, 5063, 5911, 9509, 15677, 16169, 21331, 26657, 36271, 42883, 51911, 58349, 70633, 96197, 112309, 116449, 180671, 187331, 218707, 297863, 360571, 405289, 490613, 580049, 789247, 986309, 1301191, 1342027, 2212531, 3559289, 4155433, 4308613, 6850849, 9321647, 11020931, 13341127, 14995693, 18152681, 24722629, 29927393, 48144067, 81863647, 253481413, 344900939, 568620467, 914737273, 1107313541, 21038957279]

約数ペア:

[(1, 21038957279), (19, 1107313541), (23, 914737273), (37, 568620467), (61, 344900939), (83, 253481413), (257, 81863647), (437, 48144067), (703, 29927393), (851, 24722629), (1159, 18152681), (1403, 14995693), (1577, 13341127), (1909, 11020931), (2257, 9321647), (3071, 6850849), (4883, 4308613), (5063, 4155433), (5911, 3559289), (9509, 2212531), (15677, 1342027), (16169, 1301191), (21331, 986309), (26657, 789247), (36271, 580049), (42883, 490613), (51911, 405289), (58349, 360571), (70633, 297863), (96197, 218707), (112309, 187331), (116449, 180671)]