20381373

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 30270240

約数和(自身を除く): 9888867

約数列:

[1, 3, 9, 59, 131, 177, 293, 393, 531, 879, 1179, 2637, 7729, 17287, 23187, 38383, 51861, 69561, 115149, 155583, 345447, 2264597, 6793791, 20381373]

約数ペア:

[(1, 20381373), (3, 6793791), (9, 2264597), (59, 345447), (131, 155583), (177, 115149), (293, 69561), (393, 51861), (531, 38383), (879, 23187), (1179, 17287), (2637, 7729)]