21623901

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{251}}^1$

素因数の和:361

約数の個数: 24

約数和(自身を含む): 31850784

約数和(自身を除く): 10226883

約数列:

[1, 3, 13, 39, 47, 141, 251, 611, 753, 1833, 2209, 3263, 6627, 9789, 11797, 28717, 35391, 86151, 153361, 460083, 554459, 1663377, 7207967, 21623901]

約数ペア:

[(1, 21623901), (3, 7207967), (13, 1663377), (39, 554459), (47, 460083), (141, 153361), (251, 86151), (611, 35391), (753, 28717), (1833, 11797), (2209, 9789), (3263, 6627)]