81235231

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{271}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 108103680

約数和(自身を除く): 26868449

約数列:

[1, 7, 11, 17, 77, 119, 187, 229, 271, 1309, 1603, 1897, 2519, 2981, 3893, 4607, 17633, 20867, 27251, 32249, 42823, 50677, 62059, 299761, 354739, 434413, 682649, 1055003, 4778543, 7385021, 11605033, 81235231]

約数ペア:

[(1, 81235231), (7, 11605033), (11, 7385021), (17, 4778543), (77, 1055003), (119, 682649), (187, 434413), (229, 354739), (271, 299761), (1309, 62059), (1603, 50677), (1897, 42823), (2519, 32249), (2981, 27251), (3893, 20867), (4607, 17633)]