21212784

素因数分解:

$2^4\times 3^2\times {\mathrm{147311}}^1$

素因数の和:147325

約数の個数: 30

約数和(自身を含む): 59366736

約数和(自身を除く): 38153952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 147311, 294622, 441933, 589244, 883866, 1178488, 1325799, 1767732, 2356976, 2651598, 3535464, 5303196, 7070928, 10606392, 21212784]

約数ペア:

[(1, 21212784), (2, 10606392), (3, 7070928), (4, 5303196), (6, 3535464), (8, 2651598), (9, 2356976), (12, 1767732), (16, 1325799), (18, 1178488), (24, 883866), (36, 589244), (48, 441933), (72, 294622), (144, 147311)]