219931443

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{19819}}^1$

素因数の和:19968

約数の個数: 20

約数和(自身を含む): 330954360

約数和(自身を除く): 111022917

約数列:

[1, 3, 9, 27, 81, 137, 411, 1233, 3699, 11097, 19819, 59457, 178371, 535113, 1605339, 2715203, 8145609, 24436827, 73310481, 219931443]

約数ペア:

[(1, 219931443), (3, 73310481), (9, 24436827), (27, 8145609), (81, 2715203), (137, 1605339), (411, 535113), (1233, 178371), (3699, 59457), (11097, 19819)]