21960585

素因数分解:

$3^3\times 5^1\times {\mathrm{162671}}^1$

素因数の和:162685

約数の個数: 16

約数和(自身を含む): 39041280

約数和(自身を除く): 17080695

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 162671, 488013, 813355, 1464039, 2440065, 4392117, 7320195, 21960585]

約数ペア:

[(1, 21960585), (3, 7320195), (5, 4392117), (9, 2440065), (15, 1464039), (27, 813355), (45, 488013), (135, 162671)]