16420509

素因数分解:

$3^3\times 7^1\times {\mathrm{283}}^1\times {\mathrm{307}}^1$

素因数の和:606

約数の個数: 32

約数和(自身を含む): 27991040

約数和(自身を除く): 11570531

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 283, 307, 849, 921, 1981, 2149, 2547, 2763, 5943, 6447, 7641, 8289, 17829, 19341, 53487, 58023, 86881, 260643, 608167, 781929, 1824501, 2345787, 5473503, 16420509]

約数ペア:

[(1, 16420509), (3, 5473503), (7, 2345787), (9, 1824501), (21, 781929), (27, 608167), (63, 260643), (189, 86881), (283, 58023), (307, 53487), (849, 19341), (921, 17829), (1981, 8289), (2149, 7641), (2547, 6447), (2763, 5943)]