251215779

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{3347}}^1$

素因数の和:3674

約数の個数: 16

約数和(自身を含む): 339406848

約数和(自身を除く): 88191069

約数列:

[1, 3, 127, 197, 381, 591, 3347, 10041, 25019, 75057, 425069, 659359, 1275207, 1978077, 83738593, 251215779]

約数ペア:

[(1, 251215779), (3, 83738593), (127, 1978077), (197, 1275207), (381, 659359), (591, 425069), (3347, 75057), (10041, 25019)]