21458978

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{5309}}^1$

素因数の和:5401

約数の個数: 16

約数和(自身を含む): 33644160

約数和(自身を除く): 12185182

約数列:

[1, 2, 43, 47, 86, 94, 2021, 4042, 5309, 10618, 228287, 249523, 456574, 499046, 10729489, 21458978]

約数ペア:

[(1, 21458978), (2, 10729489), (43, 499046), (47, 456574), (86, 249523), (94, 228287), (2021, 10618), (4042, 5309)]