21192890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{92143}}^1$

素因数の和:92173

約数の個数: 16

約数和(自身を含む): 39806208

約数和(自身を除く): 18613318

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 92143, 184286, 460715, 921430, 2119289, 4238578, 10596445, 21192890]

約数ペア:

[(1, 21192890), (2, 10596445), (5, 4238578), (10, 2119289), (23, 921430), (46, 460715), (115, 184286), (230, 92143)]