21786039

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{653}}^1$

素因数の和:1007

約数の個数: 24

約数和(自身を含む): 34484112

約数和(自身を除く): 12698073

約数列:

[1, 3, 9, 11, 33, 99, 337, 653, 1011, 1959, 3033, 3707, 5877, 7183, 11121, 21549, 33363, 64647, 220061, 660183, 1980549, 2420671, 7262013, 21786039]

約数ペア:

[(1, 21786039), (3, 7262013), (9, 2420671), (11, 1980549), (33, 660183), (99, 220061), (337, 64647), (653, 33363), (1011, 21549), (1959, 11121), (3033, 7183), (3707, 5877)]