20195487

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{2131}}^1$

素因数の和:2162

約数の個数: 28

約数和(自身を含む): 32623864

約数和(自身を除く): 12428377

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 2131, 3159, 6393, 9477, 19179, 27703, 57537, 83109, 172611, 249327, 517833, 747981, 1553499, 2243943, 6731829, 20195487]

約数ペア:

[(1, 20195487), (3, 6731829), (9, 2243943), (13, 1553499), (27, 747981), (39, 517833), (81, 249327), (117, 172611), (243, 83109), (351, 57537), (729, 27703), (1053, 19179), (2131, 9477), (3159, 6393)]