21288180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7549}}^1$

素因数の和:7608

約数の個数: 48

約数和(自身を含む): 60883200

約数和(自身を除く): 39595020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7549, 15098, 22647, 30196, 37745, 45294, 75490, 90588, 113235, 150980, 226470, 354803, 452940, 709606, 1064409, 1419212, 1774015, 2128818, 3548030, 4257636, 5322045, 7096060, 10644090, 21288180]

約数ペア:

[(1, 21288180), (2, 10644090), (3, 7096060), (4, 5322045), (5, 4257636), (6, 3548030), (10, 2128818), (12, 1774015), (15, 1419212), (20, 1064409), (30, 709606), (47, 452940), (60, 354803), (94, 226470), (141, 150980), (188, 113235), (235, 90588), (282, 75490), (470, 45294), (564, 37745), (705, 30196), (940, 22647), (1410, 15098), (2820, 7549)]