81652431

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{443}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 127531008

約数和(自身を除く): 45878577

約数列:

[1, 3, 7, 21, 67, 131, 201, 393, 443, 469, 917, 1329, 1407, 2751, 3101, 8777, 9303, 26331, 29681, 58033, 61439, 89043, 174099, 184317, 207767, 406231, 623301, 1218693, 3888211, 11664633, 27217477, 81652431]

約数ペア:

[(1, 81652431), (3, 27217477), (7, 11664633), (21, 3888211), (67, 1218693), (131, 623301), (201, 406231), (393, 207767), (443, 184317), (469, 174099), (917, 89043), (1329, 61439), (1407, 58033), (2751, 29681), (3101, 26331), (8777, 9303)]