20990310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63607}}^1$

素因数の和:63628

約数の個数: 32

約数和(自身を含む): 54957312

約数和(自身を除く): 33967002

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 63607, 127214, 190821, 318035, 381642, 636070, 699677, 954105, 1399354, 1908210, 2099031, 3498385, 4198062, 6996770, 10495155, 20990310]

約数ペア:

[(1, 20990310), (2, 10495155), (3, 6996770), (5, 4198062), (6, 3498385), (10, 2099031), (11, 1908210), (15, 1399354), (22, 954105), (30, 699677), (33, 636070), (55, 381642), (66, 318035), (110, 190821), (165, 127214), (330, 63607)]