20258901

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{499}}^1$

素因数の和:865

約数の個数: 24

約数和(自身を含む): 31668000

約数和(自身を除く): 11409099

約数列:

[1, 3, 9, 13, 39, 117, 347, 499, 1041, 1497, 3123, 4491, 4511, 6487, 13533, 19461, 40599, 58383, 173153, 519459, 1558377, 2250989, 6752967, 20258901]

約数ペア:

[(1, 20258901), (3, 6752967), (9, 2250989), (13, 1558377), (39, 519459), (117, 173153), (347, 58383), (499, 40599), (1041, 19461), (1497, 13533), (3123, 6487), (4491, 4511)]