217387885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{304039}}^1$

素因数の和:304068

約数の個数: 16

約数和(自身を含む): 306472320

約数和(自身を除く): 89084435

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 304039, 1520195, 3344429, 3952507, 16722145, 19762535, 43477577, 217387885]

約数ペア:

[(1, 217387885), (5, 43477577), (11, 19762535), (13, 16722145), (55, 3952507), (65, 3344429), (143, 1520195), (715, 304039)]