18562581

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:346

約数の個数: 32

約数和(自身を含む): 28819200

約数和(自身を除く): 10256619

約数列:

[1, 3, 9, 27, 29, 87, 151, 157, 261, 453, 471, 783, 1359, 1413, 4077, 4239, 4379, 4553, 13137, 13659, 23707, 39411, 40977, 71121, 118233, 122931, 213363, 640089, 687503, 2062509, 6187527, 18562581]

約数ペア:

[(1, 18562581), (3, 6187527), (9, 2062509), (27, 687503), (29, 640089), (87, 213363), (151, 122931), (157, 118233), (261, 71121), (453, 40977), (471, 39411), (783, 23707), (1359, 13659), (1413, 13137), (4077, 4553), (4239, 4379)]