20257353

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4271}}^1$

素因数の和:4325

約数の個数: 24

約数和(自身を含む): 31988736

約数和(自身を除く): 11731383

約数列:

[1, 3, 9, 17, 31, 51, 93, 153, 279, 527, 1581, 4271, 4743, 12813, 38439, 72607, 132401, 217821, 397203, 653463, 1191609, 2250817, 6752451, 20257353]

約数ペア:

[(1, 20257353), (3, 6752451), (9, 2250817), (17, 1191609), (31, 653463), (51, 397203), (93, 217821), (153, 132401), (279, 72607), (527, 38439), (1581, 12813), (4271, 4743)]