15690427221

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39324379}}^1$

素因数の和:39324408

約数の個数: 16

約数和(自身を含む): 25167603200

約数和(自身を除く): 9477175979

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 39324379, 117973137, 275270653, 747163201, 825811959, 2241489603, 5230142407, 15690427221]

約数ペア:

[(1, 15690427221), (3, 5230142407), (7, 2241489603), (19, 825811959), (21, 747163201), (57, 275270653), (133, 117973137), (399, 39324379)]