21729045

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{111431}}^1$

素因数の和:111452

約数の個数: 16

約数和(自身を含む): 37441152

約数和(自身を除く): 15712107

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 111431, 334293, 557155, 1448603, 1671465, 4345809, 7243015, 21729045]

約数ペア:

[(1, 21729045), (3, 7243015), (5, 4345809), (13, 1671465), (15, 1448603), (39, 557155), (65, 334293), (195, 111431)]