18151917

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 28864512

約数和(自身を除く): 10712595

約数列:

[1, 3, 7, 21, 47, 53, 141, 159, 329, 347, 371, 987, 1041, 1113, 2429, 2491, 7287, 7473, 16309, 17437, 18391, 48927, 52311, 55173, 114163, 128737, 342489, 386211, 864377, 2593131, 6050639, 18151917]

約数ペア:

[(1, 18151917), (3, 6050639), (7, 2593131), (21, 864377), (47, 386211), (53, 342489), (141, 128737), (159, 114163), (329, 55173), (347, 52311), (371, 48927), (987, 18391), (1041, 17437), (1113, 16309), (2429, 7473), (2491, 7287)]