21353080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76261}}^1$

素因数の和:76279

約数の個数: 32

約数和(自身を含む): 54908640

約数和(自身を除く): 33555560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76261, 152522, 305044, 381305, 533827, 610088, 762610, 1067654, 1525220, 2135308, 2669135, 3050440, 4270616, 5338270, 10676540, 21353080]

約数ペア:

[(1, 21353080), (2, 10676540), (4, 5338270), (5, 4270616), (7, 3050440), (8, 2669135), (10, 2135308), (14, 1525220), (20, 1067654), (28, 762610), (35, 610088), (40, 533827), (56, 381305), (70, 305044), (140, 152522), (280, 76261)]