1668422421

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{444557}}^1$

素因数の和:444705

約数の個数: 16

約数和(自身を含む): 2489524800

約数和(自身を除く): 821102379

約数列:

[1, 3, 9, 27, 139, 417, 1251, 3753, 444557, 1333671, 4001013, 12003039, 61793423, 185380269, 556140807, 1668422421]

約数ペア:

[(1, 1668422421), (3, 556140807), (9, 185380269), (27, 61793423), (139, 12003039), (417, 4001013), (1251, 1333671), (3753, 444557)]