20743245

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4229}}^1$

素因数の和:4349

約数の個数: 24

約数和(自身を含む): 36293400

約数和(自身を除く): 15550155

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4229, 4905, 12687, 21145, 38061, 63435, 190305, 460961, 1382883, 2304805, 4148649, 6914415, 20743245]

約数ペア:

[(1, 20743245), (3, 6914415), (5, 4148649), (9, 2304805), (15, 1382883), (45, 460961), (109, 190305), (327, 63435), (545, 38061), (981, 21145), (1635, 12687), (4229, 4905)]