20209749

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{50651}}^1$

素因数の和:50680

約数の個数: 16

約数和(自身を含む): 32417280

約数和(自身を除く): 12207531

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 50651, 151953, 354557, 962369, 1063671, 2887107, 6736583, 20209749]

約数ペア:

[(1, 20209749), (3, 6736583), (7, 2887107), (19, 1063671), (21, 962369), (57, 354557), (133, 151953), (399, 50651)]