21199878

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{168253}}^1$

素因数の和:168268

約数の個数: 24

約数和(自身を含む): 52495248

約数和(自身を除く): 31295370

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 168253, 336506, 504759, 1009518, 1177771, 1514277, 2355542, 3028554, 3533313, 7066626, 10599939, 21199878]

約数ペア:

[(1, 21199878), (2, 10599939), (3, 7066626), (6, 3533313), (7, 3028554), (9, 2355542), (14, 1514277), (18, 1177771), (21, 1009518), (42, 504759), (63, 336506), (126, 168253)]