21203655

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1201}}^1$

素因数の和:1327

約数の個数: 32

約数和(自身を含む): 37387008

約数和(自身を除く): 16183353

約数列:

[1, 3, 5, 11, 15, 33, 55, 107, 165, 321, 535, 1177, 1201, 1605, 3531, 3603, 5885, 6005, 13211, 17655, 18015, 39633, 66055, 128507, 198165, 385521, 642535, 1413577, 1927605, 4240731, 7067885, 21203655]

約数ペア:

[(1, 21203655), (3, 7067885), (5, 4240731), (11, 1927605), (15, 1413577), (33, 642535), (55, 385521), (107, 198165), (165, 128507), (321, 66055), (535, 39633), (1177, 18015), (1201, 17655), (1605, 13211), (3531, 6005), (3603, 5885)]