821028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 2179520

約数和(自身を除く): 1358492

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 277, 494, 554, 741, 831, 988, 1108, 1482, 1662, 2964, 3324, 3601, 5263, 7202, 10526, 10803, 14404, 15789, 21052, 21606, 31578, 43212, 63156, 68419, 136838, 205257, 273676, 410514, 821028]

約数ペア:

[(1, 821028), (2, 410514), (3, 273676), (4, 205257), (6, 136838), (12, 68419), (13, 63156), (19, 43212), (26, 31578), (38, 21606), (39, 21052), (52, 15789), (57, 14404), (76, 10803), (78, 10526), (114, 7202), (156, 5263), (228, 3601), (247, 3324), (277, 2964), (494, 1662), (554, 1482), (741, 1108), (831, 988)]