21202995

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7559}}^1$

素因数の和:7595

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 17988045

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 7559, 22677, 37795, 83149, 113385, 128503, 249447, 385509, 415745, 642515, 1247235, 1413533, 1927545, 4240599, 7067665, 21202995]

約数ペア:

[(1, 21202995), (3, 7067665), (5, 4240599), (11, 1927545), (15, 1413533), (17, 1247235), (33, 642515), (51, 415745), (55, 385509), (85, 249447), (165, 128503), (187, 113385), (255, 83149), (561, 37795), (935, 22677), (2805, 7559)]