21652475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3919}}^1$

素因数の和:3959

約数の個数: 24

約数和(自身を含む): 30623040

約数和(自身を除く): 8970565

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3919, 5525, 19595, 50947, 66623, 97975, 254735, 333115, 866099, 1273675, 1665575, 4330495, 21652475]

約数ペア:

[(1, 21652475), (5, 4330495), (13, 1665575), (17, 1273675), (25, 866099), (65, 333115), (85, 254735), (221, 97975), (325, 66623), (425, 50947), (1105, 19595), (3919, 5525)]