18990615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10639}}^1$

素因数の和:10671

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 17781225

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 10639, 31917, 53195, 74473, 159585, 180863, 223419, 372365, 542589, 904315, 1117095, 1266041, 2712945, 3798123, 6330205, 18990615]

約数ペア:

[(1, 18990615), (3, 6330205), (5, 3798123), (7, 2712945), (15, 1266041), (17, 1117095), (21, 904315), (35, 542589), (51, 372365), (85, 223419), (105, 180863), (119, 159585), (255, 74473), (357, 53195), (595, 31917), (1785, 10639)]