65804921

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 84446208

約数和(自身を除く): 18641287

約数列:

[1, 7, 13, 43, 67, 91, 251, 301, 469, 559, 871, 1757, 2881, 3263, 3913, 6097, 10793, 16817, 20167, 22841, 37453, 75551, 117719, 140309, 218621, 262171, 723131, 982163, 1530347, 5061917, 9400703, 65804921]

約数ペア:

[(1, 65804921), (7, 9400703), (13, 5061917), (43, 1530347), (67, 982163), (91, 723131), (251, 262171), (301, 218621), (469, 140309), (559, 117719), (871, 75551), (1757, 37453), (2881, 22841), (3263, 20167), (3913, 16817), (6097, 10793)]