3939845

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1237}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 5927544

約数和(自身を除く): 1987699

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 1237, 3185, 6185, 8659, 16081, 43295, 60613, 80405, 112567, 303065, 562835, 787969, 3939845]

約数ペア:

[(1, 3939845), (5, 787969), (7, 562835), (13, 303065), (35, 112567), (49, 80405), (65, 60613), (91, 43295), (245, 16081), (455, 8659), (637, 6185), (1237, 3185)]