18161658

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{1579}}^1$

素因数の和:1664

約数の個数: 40

約数和(自身を含む): 41294880

約数和(自身を除く): 23133222

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 426, 639, 1278, 1579, 1917, 3158, 3834, 4737, 5751, 9474, 11502, 14211, 28422, 42633, 85266, 112109, 127899, 224218, 255798, 336327, 672654, 1008981, 2017962, 3026943, 6053886, 9080829, 18161658]

約数ペア:

[(1, 18161658), (2, 9080829), (3, 6053886), (6, 3026943), (9, 2017962), (18, 1008981), (27, 672654), (54, 336327), (71, 255798), (81, 224218), (142, 127899), (162, 112109), (213, 85266), (426, 42633), (639, 28422), (1278, 14211), (1579, 11502), (1917, 9474), (3158, 5751), (3834, 4737)]