1921000545

素因数分解:

$3^2\times 5^1\times {\mathrm{42688901}}^1$

素因数の和:42688912

約数の個数: 12

約数和(自身を含む): 3329734356

約数和(自身を除く): 1408733811

約数列:

[1, 3, 5, 9, 15, 45, 42688901, 128066703, 213444505, 384200109, 640333515, 1921000545]

約数ペア:

[(1, 1921000545), (3, 640333515), (5, 384200109), (9, 213444505), (15, 128066703), (45, 42688901)]