20175487209

素因数分解:

$3^4\times {\mathrm{2837}}^1\times {\mathrm{87797}}^1$

素因数の和:90646

約数の個数: 20

約数和(自身を含む): 30149657604

約数和(自身を除く): 9974170395

約数列:

[1, 3, 9, 27, 81, 2837, 8511, 25533, 76599, 87797, 229797, 263391, 790173, 2370519, 7111557, 249080089, 747240267, 2241720801, 6725162403, 20175487209]

約数ペア:

[(1, 20175487209), (3, 6725162403), (9, 2241720801), (27, 747240267), (81, 249080089), (2837, 7111557), (8511, 2370519), (25533, 790173), (76599, 263391), (87797, 229797)]