11947887

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3109}}^1$

素因数の和:3183

約数の個数: 24

約数和(自身を含む): 20053280

約数和(自身を除く): 8105393

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3109, 3843, 9327, 21763, 27981, 65289, 189649, 195867, 568947, 1327543, 1706841, 3982629, 11947887]

約数ペア:

[(1, 11947887), (3, 3982629), (7, 1706841), (9, 1327543), (21, 568947), (61, 195867), (63, 189649), (183, 65289), (427, 27981), (549, 21763), (1281, 9327), (3109, 3843)]