20597733

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:687

約数の個数: 40

約数和(自身を含む): 34259456

約数和(自身を除く): 13661723

約数列:

[1, 3, 9, 13, 27, 31, 39, 81, 93, 117, 279, 351, 403, 631, 837, 1053, 1209, 1893, 2511, 3627, 5679, 8203, 10881, 17037, 19561, 24609, 32643, 51111, 58683, 73827, 176049, 221481, 254293, 528147, 664443, 762879, 1584441, 2288637, 6865911, 20597733]

約数ペア:

[(1, 20597733), (3, 6865911), (9, 2288637), (13, 1584441), (27, 762879), (31, 664443), (39, 528147), (81, 254293), (93, 221481), (117, 176049), (279, 73827), (351, 58683), (403, 51111), (631, 32643), (837, 24609), (1053, 19561), (1209, 17037), (1893, 10881), (2511, 8203), (3627, 5679)]