20673835

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6491}}^1$

素因数の和:6523

約数の個数: 24

約数和(自身を含む): 31083696

約数和(自身を除く): 10409861

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 6491, 32455, 45437, 84383, 227185, 318059, 421915, 590681, 1590295, 2953405, 4134767, 20673835]

約数ペア:

[(1, 20673835), (5, 4134767), (7, 2953405), (13, 1590295), (35, 590681), (49, 421915), (65, 318059), (91, 227185), (245, 84383), (455, 45437), (637, 32455), (3185, 6491)]