21364905

素因数分解:

$3^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{3881}}^1$

素因数の和:4256

約数の個数: 16

約数和(自身を含む): 34285824

約数和(自身を除く): 12920919

約数列:

[1, 3, 5, 15, 367, 1101, 1835, 3881, 5505, 11643, 19405, 58215, 1424327, 4272981, 7121635, 21364905]

約数ペア:

[(1, 21364905), (3, 7121635), (5, 4272981), (15, 1424327), (367, 58215), (1101, 19405), (1835, 11643), (3881, 5505)]