19723288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{953}}^1$

素因数の和:1171

約数の個数: 32

約数和(自身を含む): 40068000

約数和(自身を除く): 20344712

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199, 398, 796, 953, 1592, 1906, 2587, 3812, 5174, 7624, 10348, 12389, 20696, 24778, 49556, 99112, 189647, 379294, 758588, 1517176, 2465411, 4930822, 9861644, 19723288]

約数ペア:

[(1, 19723288), (2, 9861644), (4, 4930822), (8, 2465411), (13, 1517176), (26, 758588), (52, 379294), (104, 189647), (199, 99112), (398, 49556), (796, 24778), (953, 20696), (1592, 12389), (1906, 10348), (2587, 7624), (3812, 5174)]