257100039

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{214787}}^1$

素因数の和:214819

約数の個数: 24

約数和(自身を含む): 446759040

約数和(自身を除く): 189659001

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 214787, 644361, 1503509, 1933083, 4080953, 4510527, 12242859, 13531581, 28566671, 36728577, 85700013, 257100039]

約数ペア:

[(1, 257100039), (3, 85700013), (7, 36728577), (9, 28566671), (19, 13531581), (21, 12242859), (57, 4510527), (63, 4080953), (133, 1933083), (171, 1503509), (399, 644361), (1197, 214787)]