20217141

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2609}}^1$

素因数の和:2666

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 14861259

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 123, 189, 287, 369, 861, 1107, 2583, 2609, 7749, 7827, 18263, 23481, 54789, 70443, 106969, 164367, 320907, 493101, 748783, 962721, 2246349, 2888163, 6739047, 20217141]

約数ペア:

[(1, 20217141), (3, 6739047), (7, 2888163), (9, 2246349), (21, 962721), (27, 748783), (41, 493101), (63, 320907), (123, 164367), (189, 106969), (287, 70443), (369, 54789), (861, 23481), (1107, 18263), (2583, 7827), (2609, 7749)]