20219205

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2143}}^1$

素因数の和:2205

約数の個数: 32

約数和(自身を含む): 35195904

約数和(自身を除く): 14976699

約数列:

[1, 3, 5, 15, 17, 37, 51, 85, 111, 185, 255, 555, 629, 1887, 2143, 3145, 6429, 9435, 10715, 32145, 36431, 79291, 109293, 182155, 237873, 396455, 546465, 1189365, 1347947, 4043841, 6739735, 20219205]

約数ペア:

[(1, 20219205), (3, 6739735), (5, 4043841), (15, 1347947), (17, 1189365), (37, 546465), (51, 396455), (85, 237873), (111, 182155), (185, 109293), (255, 79291), (555, 36431), (629, 32145), (1887, 10715), (2143, 9435), (3145, 6429)]