878787

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:92

約数の個数: 48

約数和(自身を含む): 1659840

約数和(自身を除く): 781053

約数列:

[1, 3, 7, 9, 13, 21, 29, 37, 39, 63, 87, 91, 111, 117, 203, 259, 261, 273, 333, 377, 481, 609, 777, 819, 1073, 1131, 1443, 1827, 2331, 2639, 3219, 3367, 3393, 4329, 7511, 7917, 9657, 10101, 13949, 22533, 23751, 30303, 41847, 67599, 97643, 125541, 292929, 878787]

約数ペア:

[(1, 878787), (3, 292929), (7, 125541), (9, 97643), (13, 67599), (21, 41847), (29, 30303), (37, 23751), (39, 22533), (63, 13949), (87, 10101), (91, 9657), (111, 7917), (117, 7511), (203, 4329), (259, 3393), (261, 3367), (273, 3219), (333, 2639), (377, 2331), (481, 1827), (609, 1443), (777, 1131), (819, 1073)]