21181218

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{739}}^1$

素因数の和:1042

約数の個数: 32

約数和(自身を含む): 45074880

約数和(自身を除く): 23893662

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 281, 562, 739, 843, 1478, 1686, 2217, 4434, 4777, 9554, 12563, 14331, 25126, 28662, 37689, 75378, 207659, 415318, 622977, 1245954, 3530203, 7060406, 10590609, 21181218]

約数ペア:

[(1, 21181218), (2, 10590609), (3, 7060406), (6, 3530203), (17, 1245954), (34, 622977), (51, 415318), (102, 207659), (281, 75378), (562, 37689), (739, 28662), (843, 25126), (1478, 14331), (1686, 12563), (2217, 9554), (4434, 4777)]