28941521

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{2683}}^1$

素因数の和:2780

約数の個数: 16

約数和(自身を含む): 35042304

約数和(自身を除く): 6100783

約数列:

[1, 7, 23, 67, 161, 469, 1541, 2683, 10787, 18781, 61709, 179761, 431963, 1258327, 4134503, 28941521]

約数ペア:

[(1, 28941521), (7, 4134503), (23, 1258327), (67, 431963), (161, 179761), (469, 61709), (1541, 18781), (2683, 10787)]