20503869

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{5897}}^1$

素因数の和:5980

約数の個数: 16

約数和(自身を含む): 29254080

約数和(自身を除く): 8750211

約数列:

[1, 3, 19, 57, 61, 183, 1159, 3477, 5897, 17691, 112043, 336129, 359717, 1079151, 6834623, 20503869]

約数ペア:

[(1, 20503869), (3, 6834623), (19, 1079151), (57, 359717), (61, 336129), (183, 112043), (1159, 17691), (3477, 5897)]