21107640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{175897}}^1$

素因数の和:175911

約数の個数: 32

約数和(自身を含む): 63323280

約数和(自身を除く): 42215640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 175897, 351794, 527691, 703588, 879485, 1055382, 1407176, 1758970, 2110764, 2638455, 3517940, 4221528, 5276910, 7035880, 10553820, 21107640]

約数ペア:

[(1, 21107640), (2, 10553820), (3, 7035880), (4, 5276910), (5, 4221528), (6, 3517940), (8, 2638455), (10, 2110764), (12, 1758970), (15, 1407176), (20, 1055382), (24, 879485), (30, 703588), (40, 527691), (60, 351794), (120, 175897)]