211085145

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{203947}}^1$

素因数の和:203981

約数の個数: 24

約数和(自身を含む): 381790656

約数和(自身を除く): 170705511

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 203947, 611841, 1019735, 1835523, 3059205, 4690781, 9177615, 14072343, 23453905, 42217029, 70361715, 211085145]

約数ペア:

[(1, 211085145), (3, 70361715), (5, 42217029), (9, 23453905), (15, 14072343), (23, 9177615), (45, 4690781), (69, 3059205), (115, 1835523), (207, 1019735), (345, 611841), (1035, 203947)]