21383310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54829}}^1$

素因数の和:54852

約数の個数: 32

約数和(自身を含む): 55268640

約数和(自身を除く): 33885330

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 54829, 109658, 164487, 274145, 328974, 548290, 712777, 822435, 1425554, 1644870, 2138331, 3563885, 4276662, 7127770, 10691655, 21383310]

約数ペア:

[(1, 21383310), (2, 10691655), (3, 7127770), (5, 4276662), (6, 3563885), (10, 2138331), (13, 1644870), (15, 1425554), (26, 822435), (30, 712777), (39, 548290), (65, 328974), (78, 274145), (130, 164487), (195, 109658), (390, 54829)]