21106035

素因数分解:

$3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1979}}^1$

素因数の和:2072

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 16909965

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 135, 237, 395, 711, 1185, 1979, 2133, 3555, 5937, 9895, 10665, 17811, 29685, 53433, 89055, 156341, 267165, 469023, 781705, 1407069, 2345115, 4221207, 7035345, 21106035]

約数ペア:

[(1, 21106035), (3, 7035345), (5, 4221207), (9, 2345115), (15, 1407069), (27, 781705), (45, 469023), (79, 267165), (135, 156341), (237, 89055), (395, 53433), (711, 29685), (1185, 17811), (1979, 10665), (2133, 9895), (3555, 5937)]