20169021

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 29285344

約数和(自身を除く): 9116323

約数列:

[1, 3, 17, 43, 51, 129, 289, 541, 731, 867, 1623, 2193, 9197, 12427, 23263, 27591, 37281, 69789, 156349, 395471, 469047, 1186413, 6723007, 20169021]

約数ペア:

[(1, 20169021), (3, 6723007), (17, 1186413), (43, 469047), (51, 395471), (129, 156349), (289, 69789), (541, 37281), (731, 27591), (867, 23263), (1623, 12427), (2193, 9197)]