420657601

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{13477}}^1$

素因数の和:13518

約数の個数: 20

約数和(自身を含む): 528526292

約数和(自身を除く): 107868691

約数列:

[1, 7, 13, 49, 91, 343, 637, 2401, 4459, 13477, 31213, 94339, 175201, 660373, 1226407, 4622611, 8584849, 32358277, 60093943, 420657601]

約数ペア:

[(1, 420657601), (7, 60093943), (13, 32358277), (49, 8584849), (91, 4622611), (343, 1226407), (637, 660373), (2401, 175201), (4459, 94339), (13477, 31213)]