51781023

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 90854400

約数和(自身を除く): 39073377

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 181, 239, 399, 543, 717, 1197, 1267, 1629, 1673, 2151, 3439, 3801, 4541, 5019, 10317, 11403, 13623, 15057, 24073, 30951, 31787, 40869, 43259, 72219, 95361, 129777, 216657, 286083, 302813, 389331, 821921, 908439, 2465763, 2725317, 5753447, 7397289, 17260341, 51781023]

約数ペア:

[(1, 51781023), (3, 17260341), (7, 7397289), (9, 5753447), (19, 2725317), (21, 2465763), (57, 908439), (63, 821921), (133, 389331), (171, 302813), (181, 286083), (239, 216657), (399, 129777), (543, 95361), (717, 72219), (1197, 43259), (1267, 40869), (1629, 31787), (1673, 30951), (2151, 24073), (3439, 15057), (3801, 13623), (4541, 11403), (5019, 10317)]