21022638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:441

約数の個数: 64

約数和(自身を含む): 52308480

約数和(自身を除く): 31285842

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 139, 182, 273, 277, 278, 417, 546, 554, 831, 834, 973, 1662, 1807, 1939, 1946, 2919, 3601, 3614, 3878, 5421, 5817, 5838, 7202, 10803, 10842, 11634, 12649, 21606, 25207, 25298, 37947, 38503, 50414, 75621, 75894, 77006, 115509, 151242, 231018, 269521, 500539, 539042, 808563, 1001078, 1501617, 1617126, 3003234, 3503773, 7007546, 10511319, 21022638]

約数ペア:

[(1, 21022638), (2, 10511319), (3, 7007546), (6, 3503773), (7, 3003234), (13, 1617126), (14, 1501617), (21, 1001078), (26, 808563), (39, 539042), (42, 500539), (78, 269521), (91, 231018), (139, 151242), (182, 115509), (273, 77006), (277, 75894), (278, 75621), (417, 50414), (546, 38503), (554, 37947), (831, 25298), (834, 25207), (973, 21606), (1662, 12649), (1807, 11634), (1939, 10842), (1946, 10803), (2919, 7202), (3601, 5838), (3614, 5817), (3878, 5421)]