21380490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{79187}}^1$

素因数の和:79203

約数の個数: 32

約数和(自身を含む): 57015360

約数和(自身を除く): 35634870

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 79187, 158374, 237561, 395935, 475122, 712683, 791870, 1187805, 1425366, 2138049, 2375610, 3563415, 4276098, 7126830, 10690245, 21380490]

約数ペア:

[(1, 21380490), (2, 10690245), (3, 7126830), (5, 4276098), (6, 3563415), (9, 2375610), (10, 2138049), (15, 1425366), (18, 1187805), (27, 791870), (30, 712683), (45, 475122), (54, 395935), (90, 237561), (135, 158374), (270, 79187)]