28272881

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3203}}^1$

素因数の和:3320

約数の個数: 16

約数和(自身を含む): 35167104

約数和(自身を除く): 6894223

約数列:

[1, 7, 13, 91, 97, 679, 1261, 3203, 8827, 22421, 41639, 291473, 310691, 2174837, 4038983, 28272881]

約数ペア:

[(1, 28272881), (7, 4038983), (13, 2174837), (91, 310691), (97, 291473), (679, 41639), (1261, 22421), (3203, 8827)]