21357090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{237301}}^1$

素因数の和:237314

約数の個数: 24

約数和(自身を含む): 55528668

約数和(自身を除く): 34171578

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 237301, 474602, 711903, 1186505, 1423806, 2135709, 2373010, 3559515, 4271418, 7119030, 10678545, 21357090]

約数ペア:

[(1, 21357090), (2, 10678545), (3, 7119030), (5, 4271418), (6, 3559515), (9, 2373010), (10, 2135709), (15, 1423806), (18, 1186505), (30, 711903), (45, 474602), (90, 237301)]