21810660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21383}}^1$

素因数の和:21412

約数の個数: 48

約数和(自身を含む): 64665216

約数和(自身を除く): 42854556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21383, 42766, 64149, 85532, 106915, 128298, 213830, 256596, 320745, 363511, 427660, 641490, 727022, 1090533, 1282980, 1454044, 1817555, 2181066, 3635110, 4362132, 5452665, 7270220, 10905330, 21810660]

約数ペア:

[(1, 21810660), (2, 10905330), (3, 7270220), (4, 5452665), (5, 4362132), (6, 3635110), (10, 2181066), (12, 1817555), (15, 1454044), (17, 1282980), (20, 1090533), (30, 727022), (34, 641490), (51, 427660), (60, 363511), (68, 320745), (85, 256596), (102, 213830), (170, 128298), (204, 106915), (255, 85532), (340, 64149), (510, 42766), (1020, 21383)]