81675783

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6263}}^1$

素因数の和:6305

約数の個数: 40

約数和(自身を含む): 145525248

約数和(自身を除く): 63849465

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1863, 4347, 6263, 13041, 18789, 43841, 56367, 131523, 144049, 169101, 394569, 432147, 507303, 1008343, 1183707, 1296441, 3025029, 3551121, 3889323, 9075087, 11667969, 27225261, 81675783]

約数ペア:

[(1, 81675783), (3, 27225261), (7, 11667969), (9, 9075087), (21, 3889323), (23, 3551121), (27, 3025029), (63, 1296441), (69, 1183707), (81, 1008343), (161, 507303), (189, 432147), (207, 394569), (483, 169101), (567, 144049), (621, 131523), (1449, 56367), (1863, 43841), (4347, 18789), (6263, 13041)]