21650778

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{16477}}^1$

素因数の和:16558

約数の個数: 24

約数和(自身を含む): 47555508

約数和(自身を除く): 25904730

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 657, 1314, 16477, 32954, 49431, 98862, 148293, 296586, 1202821, 2405642, 3608463, 7216926, 10825389, 21650778]

約数ペア:

[(1, 21650778), (2, 10825389), (3, 7216926), (6, 3608463), (9, 2405642), (18, 1202821), (73, 296586), (146, 148293), (219, 98862), (438, 49431), (657, 32954), (1314, 16477)]