21406910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17989}}^1$

素因数の和:18020

約数の個数: 32

約数和(自身を含む): 46630080

約数和(自身を除く): 25223170

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 17989, 35978, 89945, 125923, 179890, 251846, 305813, 611626, 629615, 1259230, 1529065, 2140691, 3058130, 4281382, 10703455, 21406910]

約数ペア:

[(1, 21406910), (2, 10703455), (5, 4281382), (7, 3058130), (10, 2140691), (14, 1529065), (17, 1259230), (34, 629615), (35, 611626), (70, 305813), (85, 251846), (119, 179890), (170, 125923), (238, 89945), (595, 35978), (1190, 17989)]