21860145

素因数分解:

$3^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{839}}^1$

素因数の和:1046

約数の個数: 32

約数和(自身を含む): 39110400

約数和(自身を除く): 17250255

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 193, 579, 839, 965, 1737, 2517, 2895, 4195, 5211, 7551, 8685, 12585, 22653, 26055, 37755, 113265, 161927, 485781, 809635, 1457343, 2428905, 4372029, 7286715, 21860145]

約数ペア:

[(1, 21860145), (3, 7286715), (5, 4372029), (9, 2428905), (15, 1457343), (27, 809635), (45, 485781), (135, 161927), (193, 113265), (579, 37755), (839, 26055), (965, 22653), (1737, 12585), (2517, 8685), (2895, 7551), (4195, 5211)]