21059080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{75211}}^1$

素因数の和:75229

約数の個数: 32

約数和(自身を含む): 54152640

約数和(自身を除く): 33093560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 75211, 150422, 300844, 376055, 526477, 601688, 752110, 1052954, 1504220, 2105908, 2632385, 3008440, 4211816, 5264770, 10529540, 21059080]

約数ペア:

[(1, 21059080), (2, 10529540), (4, 5264770), (5, 4211816), (7, 3008440), (8, 2632385), (10, 2105908), (14, 1504220), (20, 1052954), (28, 752110), (35, 601688), (40, 526477), (56, 376055), (70, 300844), (140, 150422), (280, 75211)]