27915993

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^2$

素因数の和:242

約数の個数: 36

約数和(自身を含む): 47331648

約数和(自身を除く): 19415655

約数列:

[1, 3, 7, 9, 21, 63, 71, 79, 213, 237, 497, 553, 639, 711, 1491, 1659, 4473, 4977, 5609, 6241, 16827, 18723, 39263, 43687, 50481, 56169, 117789, 131061, 353367, 393183, 443111, 1329333, 3101777, 3987999, 9305331, 27915993]

約数ペア:

[(1, 27915993), (3, 9305331), (7, 3987999), (9, 3101777), (21, 1329333), (63, 443111), (71, 393183), (79, 353367), (213, 131061), (237, 117789), (497, 56169), (553, 50481), (639, 43687), (711, 39263), (1491, 18723), (1659, 16827), (4473, 6241), (4977, 5609)]