21209784

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{18803}}^1$

素因数の和:18859

約数の個数: 32

約数和(自身を含む): 54155520

約数和(自身を除く): 32945736

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 141, 188, 282, 376, 564, 1128, 18803, 37606, 56409, 75212, 112818, 150424, 225636, 451272, 883741, 1767482, 2651223, 3534964, 5302446, 7069928, 10604892, 21209784]

約数ペア:

[(1, 21209784), (2, 10604892), (3, 7069928), (4, 5302446), (6, 3534964), (8, 2651223), (12, 1767482), (24, 883741), (47, 451272), (94, 225636), (141, 150424), (188, 112818), (282, 75212), (376, 56409), (564, 37606), (1128, 18803)]