21044010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53959}}^1$

素因数の和:53982

約数の個数: 32

約数和(自身を含む): 54391680

約数和(自身を除く): 33347670

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53959, 107918, 161877, 269795, 323754, 539590, 701467, 809385, 1402934, 1618770, 2104401, 3507335, 4208802, 7014670, 10522005, 21044010]

約数ペア:

[(1, 21044010), (2, 10522005), (3, 7014670), (5, 4208802), (6, 3507335), (10, 2104401), (13, 1618770), (15, 1402934), (26, 809385), (30, 701467), (39, 539590), (65, 323754), (78, 269795), (130, 161877), (195, 107918), (390, 53959)]