81279986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{22051}}^1$

素因数の和:22169

約数の個数: 16

約数和(自身を含む): 129665760

約数和(自身を除く): 48385774

約数列:

[1, 2, 19, 38, 97, 194, 1843, 3686, 22051, 44102, 418969, 837938, 2138947, 4277894, 40639993, 81279986]

約数ペア:

[(1, 81279986), (2, 40639993), (19, 4277894), (38, 2138947), (97, 837938), (194, 418969), (1843, 44102), (3686, 22051)]