21284820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118249}}^1$

素因数の和:118264

約数の個数: 36

約数和(自身を含む): 64564500

約数和(自身を除く): 43279680

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118249, 236498, 354747, 472996, 591245, 709494, 1064241, 1182490, 1418988, 1773735, 2128482, 2364980, 3547470, 4256964, 5321205, 7094940, 10642410, 21284820]

約数ペア:

[(1, 21284820), (2, 10642410), (3, 7094940), (4, 5321205), (5, 4256964), (6, 3547470), (9, 2364980), (10, 2128482), (12, 1773735), (15, 1418988), (18, 1182490), (20, 1064241), (30, 709494), (36, 591245), (45, 472996), (60, 354747), (90, 236498), (180, 118249)]