21479003

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{4817}}^1$

素因数の和:4851

約数の個数: 16

約数和(自身を含む): 26980800

約数和(自身を除く): 5501797

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 4817, 33719, 62621, 236033, 438347, 1652231, 3068429, 21479003]

約数ペア:

[(1, 21479003), (7, 3068429), (13, 1652231), (49, 438347), (91, 236033), (343, 62621), (637, 33719), (4459, 4817)]