18507879

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{787}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 30007040

約数和(自身を除く): 11499161

約数列:

[1, 3, 9, 13, 27, 39, 67, 117, 201, 351, 603, 787, 871, 1809, 2361, 2613, 7083, 7839, 10231, 21249, 23517, 30693, 52729, 92079, 158187, 276237, 474561, 685477, 1423683, 2056431, 6169293, 18507879]

約数ペア:

[(1, 18507879), (3, 6169293), (9, 2056431), (13, 1423683), (27, 685477), (39, 474561), (67, 276237), (117, 158187), (201, 92079), (351, 52729), (603, 30693), (787, 23517), (871, 21249), (1809, 10231), (2361, 7839), (2613, 7083)]