19730421

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2999}}^1$

素因数の和:3065

約数の個数: 24

約数和(自身を含む): 30888000

約数和(自身を除く): 11157579

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 2193, 2999, 6579, 8997, 26991, 50983, 128957, 152949, 386871, 458847, 1160613, 2192269, 6576807, 19730421]

約数ペア:

[(1, 19730421), (3, 6576807), (9, 2192269), (17, 1160613), (43, 458847), (51, 386871), (129, 152949), (153, 128957), (387, 50983), (731, 26991), (2193, 8997), (2999, 6579)]