81657147

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1453}}^1$

素因数の和:1611

約数の個数: 32

約数和(自身を含む): 128975616

約数和(自身を除く): 47318469

約数列:

[1, 3, 11, 13, 33, 39, 131, 143, 393, 429, 1441, 1453, 1703, 4323, 4359, 5109, 15983, 18733, 18889, 47949, 56199, 56667, 190343, 207779, 571029, 623337, 2093773, 2474459, 6281319, 7423377, 27219049, 81657147]

約数ペア:

[(1, 81657147), (3, 27219049), (11, 7423377), (13, 6281319), (33, 2474459), (39, 2093773), (131, 623337), (143, 571029), (393, 207779), (429, 190343), (1441, 56667), (1453, 56199), (1703, 47949), (4323, 18889), (4359, 18733), (5109, 15983)]