18559216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89227}}^1$

素因数の和:89248

約数の個数: 20

約数和(自身を含む): 38724952

約数和(自身を除く): 20165736

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89227, 178454, 356908, 713816, 1159951, 1427632, 2319902, 4639804, 9279608, 18559216]

約数ペア:

[(1, 18559216), (2, 9279608), (4, 4639804), (8, 2319902), (13, 1427632), (16, 1159951), (26, 713816), (52, 356908), (104, 178454), (208, 89227)]