28189986

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{991}}^1$

素因数の和:1438

約数の個数: 32

約数和(自身を含む): 61710336

約数和(自身を除く): 33520350

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 431, 862, 991, 1293, 1982, 2586, 2973, 4741, 5946, 9482, 10901, 14223, 21802, 28446, 32703, 65406, 427121, 854242, 1281363, 2562726, 4698331, 9396662, 14094993, 28189986]

約数ペア:

[(1, 28189986), (2, 14094993), (3, 9396662), (6, 4698331), (11, 2562726), (22, 1281363), (33, 854242), (66, 427121), (431, 65406), (862, 32703), (991, 28446), (1293, 21802), (1982, 14223), (2586, 10901), (2973, 9482), (4741, 5946)]