21215730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{707191}}^1$

素因数の和:707201

約数の個数: 16

約数和(自身を含む): 50917824

約数和(自身を除く): 29702094

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 707191, 1414382, 2121573, 3535955, 4243146, 7071910, 10607865, 21215730]

約数ペア:

[(1, 21215730), (2, 10607865), (3, 7071910), (5, 4243146), (6, 3535955), (10, 2121573), (15, 1414382), (30, 707191)]