21482780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97649}}^1$

素因数の和:97669

約数の個数: 24

約数和(自身を含む): 49215600

約数和(自身を除く): 27732820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 97649, 195298, 390596, 488245, 976490, 1074139, 1952980, 2148278, 4296556, 5370695, 10741390, 21482780]

約数ペア:

[(1, 21482780), (2, 10741390), (4, 5370695), (5, 4296556), (10, 2148278), (11, 1952980), (20, 1074139), (22, 976490), (44, 488245), (55, 390596), (110, 195298), (220, 97649)]