28070991

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3037}}^1$

素因数の和:3135

約数の個数: 24

約数和(自身を含む): 44233280

約数和(自身を除く): 16162289

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 3037, 3081, 9111, 9243, 27333, 39481, 118443, 239923, 355329, 719769, 2159307, 3118999, 9356997, 28070991]

約数ペア:

[(1, 28070991), (3, 9356997), (9, 3118999), (13, 2159307), (39, 719769), (79, 355329), (117, 239923), (237, 118443), (711, 39481), (1027, 27333), (3037, 9243), (3081, 9111)]