28928991

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{105967}}^1$

素因数の和:105990

約数の個数: 16

約数和(自身を含む): 47473664

約数和(自身を除く): 18544673

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 105967, 317901, 741769, 1377571, 2225307, 4132713, 9642997, 28928991]

約数ペア:

[(1, 28928991), (3, 9642997), (7, 4132713), (13, 2225307), (21, 1377571), (39, 741769), (91, 317901), (273, 105967)]