20181868

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23251}}^1$

素因数の和:23293

約数の個数: 24

約数和(自身を含む): 41667584

約数和(自身を除く): 21485716

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23251, 46502, 93004, 162757, 325514, 651028, 720781, 1441562, 2883124, 5045467, 10090934, 20181868]

約数ペア:

[(1, 20181868), (2, 10090934), (4, 5045467), (7, 2883124), (14, 1441562), (28, 720781), (31, 651028), (62, 325514), (124, 162757), (217, 93004), (434, 46502), (868, 23251)]