218327991

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{2161}}^1$

素因数の和:2471

約数の個数: 32

約数和(自身を含む): 353668608

約数和(自身を除く): 135340617

約数列:

[1, 3, 7, 17, 21, 51, 119, 283, 357, 849, 1981, 2161, 4811, 5943, 6483, 14433, 15127, 33677, 36737, 45381, 101031, 110211, 257159, 611563, 771477, 1834689, 4280941, 10396571, 12842823, 31189713, 72775997, 218327991]

約数ペア:

[(1, 218327991), (3, 72775997), (7, 31189713), (17, 12842823), (21, 10396571), (51, 4280941), (119, 1834689), (283, 771477), (357, 611563), (849, 257159), (1981, 110211), (2161, 101031), (4811, 45381), (5943, 36737), (6483, 33677), (14433, 15127)]