18971145

素因数分解:

$3^3\times 5^1\times {\mathrm{140527}}^1$

素因数の和:140541

約数の個数: 16

約数和(自身を含む): 33726720

約数和(自身を除く): 14755575

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 140527, 421581, 702635, 1264743, 2107905, 3794229, 6323715, 18971145]

約数ペア:

[(1, 18971145), (3, 6323715), (5, 3794229), (9, 2107905), (15, 1264743), (27, 702635), (45, 421581), (135, 140527)]