20921472717

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{5407}}^1\times {\mathrm{67883}}^1$

素因数の和:73312

約数の個数: 16

約数和(自身を含む): 29369333760

約数和(自身を除く): 8447861043

約数列:

[1, 3, 19, 57, 5407, 16221, 67883, 102733, 203649, 308199, 1289777, 3869331, 367043381, 1101130143, 6973824239, 20921472717]

約数ペア:

[(1, 20921472717), (3, 6973824239), (19, 1101130143), (57, 367043381), (5407, 3869331), (16221, 1289777), (67883, 308199), (102733, 203649)]