31851711

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 19515969

約数列:

[1, 3, 9, 23, 27, 41, 69, 81, 123, 139, 207, 243, 369, 417, 621, 943, 1107, 1251, 1863, 2829, 3197, 3321, 3753, 5589, 5699, 8487, 9591, 9963, 11259, 17097, 25461, 28773, 33777, 51291, 76383, 86319, 131077, 153873, 229149, 258957, 393231, 461619, 776871, 1179693, 1384857, 3539079, 10617237, 31851711]

約数ペア:

[(1, 31851711), (3, 10617237), (9, 3539079), (23, 1384857), (27, 1179693), (41, 776871), (69, 461619), (81, 393231), (123, 258957), (139, 229149), (207, 153873), (243, 131077), (369, 86319), (417, 76383), (621, 51291), (943, 33777), (1107, 28773), (1251, 25461), (1863, 17097), (2829, 11259), (3197, 9963), (3321, 9591), (3753, 8487), (5589, 5699)]