18990565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{709}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 24946560

約数和(自身を除く): 5955995

約数列:

[1, 5, 11, 55, 487, 709, 2435, 3545, 5357, 7799, 26785, 38995, 345283, 1726415, 3798113, 18990565]

約数ペア:

[(1, 18990565), (5, 3798113), (11, 1726415), (55, 345283), (487, 38995), (709, 26785), (2435, 7799), (3545, 5357)]