21459080

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{7349}}^1$

素因数の和:7433

約数の個数: 32

約数和(自身を含む): 48951000

約数和(自身を除く): 27491920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 7349, 14698, 29396, 36745, 58792, 73490, 146980, 293960, 536477, 1072954, 2145908, 2682385, 4291816, 5364770, 10729540, 21459080]

約数ペア:

[(1, 21459080), (2, 10729540), (4, 5364770), (5, 4291816), (8, 2682385), (10, 2145908), (20, 1072954), (40, 536477), (73, 293960), (146, 146980), (292, 73490), (365, 58792), (584, 36745), (730, 29396), (1460, 14698), (2920, 7349)]