21608343

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{263}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 12606057

約数列:

[1, 3, 9, 17, 27, 51, 153, 179, 263, 459, 537, 789, 1611, 2367, 3043, 4471, 4833, 7101, 9129, 13413, 27387, 40239, 47077, 82161, 120717, 141231, 423693, 800309, 1271079, 2400927, 7202781, 21608343]

約数ペア:

[(1, 21608343), (3, 7202781), (9, 2400927), (17, 1271079), (27, 800309), (51, 423693), (153, 141231), (179, 120717), (263, 82161), (459, 47077), (537, 40239), (789, 27387), (1611, 13413), (2367, 9129), (3043, 7101), (4471, 4833)]