215686955

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{206399}}^1$

素因数の和:206434

約数の個数: 16

約数和(自身を含む): 297216000

約数和(自身を除く): 81529045

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 206399, 1031995, 2270389, 3921581, 11351945, 19607905, 43137391, 215686955]

約数ペア:

[(1, 215686955), (5, 43137391), (11, 19607905), (19, 11351945), (55, 3921581), (95, 2270389), (209, 1031995), (1045, 206399)]