81694613

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 113762880

約数和(自身を除く): 32068267

約数列:

[1, 7, 11, 13, 49, 77, 89, 91, 131, 143, 539, 623, 637, 917, 979, 1001, 1157, 1441, 1703, 4361, 6419, 6853, 7007, 8099, 10087, 11659, 11921, 12727, 18733, 47971, 56693, 70609, 81613, 83447, 89089, 128249, 131131, 151567, 571291, 623623, 897743, 917917, 1060969, 1667237, 6284201, 7426783, 11670659, 81694613]

約数ペア:

[(1, 81694613), (7, 11670659), (11, 7426783), (13, 6284201), (49, 1667237), (77, 1060969), (89, 917917), (91, 897743), (131, 623623), (143, 571291), (539, 151567), (623, 131131), (637, 128249), (917, 89089), (979, 83447), (1001, 81613), (1157, 70609), (1441, 56693), (1703, 47971), (4361, 18733), (6419, 12727), (6853, 11921), (7007, 11659), (8099, 10087)]