21257892

素因数分解:

$2^2\times 3^2\times {\mathrm{73}}^1\times {\mathrm{8089}}^1$

素因数の和:8172

約数の個数: 36

約数和(自身を含む): 54478060

約数和(自身を除く): 33220168

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 73, 146, 219, 292, 438, 657, 876, 1314, 2628, 8089, 16178, 24267, 32356, 48534, 72801, 97068, 145602, 291204, 590497, 1180994, 1771491, 2361988, 3542982, 5314473, 7085964, 10628946, 21257892]

約数ペア:

[(1, 21257892), (2, 10628946), (3, 7085964), (4, 5314473), (6, 3542982), (9, 2361988), (12, 1771491), (18, 1180994), (36, 590497), (73, 291204), (146, 145602), (219, 97068), (292, 72801), (438, 48534), (657, 32356), (876, 24267), (1314, 16178), (2628, 8089)]