21040180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150287}}^1$

素因数の和:150303

約数の個数: 24

約数和(自身を含む): 50496768

約数和(自身を除く): 29456588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150287, 300574, 601148, 751435, 1052009, 1502870, 2104018, 3005740, 4208036, 5260045, 10520090, 21040180]

約数ペア:

[(1, 21040180), (2, 10520090), (4, 5260045), (5, 4208036), (7, 3005740), (10, 2104018), (14, 1502870), (20, 1052009), (28, 751435), (35, 601148), (70, 300574), (140, 150287)]