19640508

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2239}}^1$

素因数の和:2306

約数の個数: 48

約数和(自身を含む): 49674240

約数和(自身を除く): 30033732

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 43, 51, 68, 86, 102, 129, 172, 204, 258, 516, 731, 1462, 2193, 2239, 2924, 4386, 4478, 6717, 8772, 8956, 13434, 26868, 38063, 76126, 96277, 114189, 152252, 192554, 228378, 288831, 385108, 456756, 577662, 1155324, 1636709, 3273418, 4910127, 6546836, 9820254, 19640508]

約数ペア:

[(1, 19640508), (2, 9820254), (3, 6546836), (4, 4910127), (6, 3273418), (12, 1636709), (17, 1155324), (34, 577662), (43, 456756), (51, 385108), (68, 288831), (86, 228378), (102, 192554), (129, 152252), (172, 114189), (204, 96277), (258, 76126), (516, 38063), (731, 26868), (1462, 13434), (2193, 8956), (2239, 8772), (2924, 6717), (4386, 4478)]