21427160

素因数分解:

$2^3\times 5^1\times {\mathrm{535679}}^1$

素因数の和:535690

約数の個数: 16

約数和(自身を含む): 48211200

約数和(自身を除く): 26784040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 535679, 1071358, 2142716, 2678395, 4285432, 5356790, 10713580, 21427160]

約数ペア:

[(1, 21427160), (2, 10713580), (4, 5356790), (5, 4285432), (8, 2678395), (10, 2142716), (20, 1071358), (40, 535679)]