209726145

素因数分解:

$3^3\times 5^1\times {\mathrm{1553527}}^1$

素因数の和:1553541

約数の個数: 16

約数和(自身を含む): 372846720

約数和(自身を除く): 163120575

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1553527, 4660581, 7767635, 13981743, 23302905, 41945229, 69908715, 209726145]

約数ペア:

[(1, 209726145), (3, 69908715), (5, 41945229), (9, 23302905), (15, 13981743), (27, 7767635), (45, 4660581), (135, 1553527)]