81653427

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1069}}^1$

素因数の和:1145

約数の個数: 40

約数和(自身を含む): 130505760

約数和(自身を除く): 48852333

約数列:

[1, 3, 9, 23, 27, 41, 69, 81, 123, 207, 369, 621, 943, 1069, 1107, 1863, 2829, 3207, 3321, 8487, 9621, 24587, 25461, 28863, 43829, 73761, 76383, 86589, 131487, 221283, 394461, 663849, 1008067, 1183383, 1991547, 3024201, 3550149, 9072603, 27217809, 81653427]

約数ペア:

[(1, 81653427), (3, 27217809), (9, 9072603), (23, 3550149), (27, 3024201), (41, 1991547), (69, 1183383), (81, 1008067), (123, 663849), (207, 394461), (369, 221283), (621, 131487), (943, 86589), (1069, 76383), (1107, 73761), (1863, 43829), (2829, 28863), (3207, 25461), (3321, 24587), (8487, 9621)]