81489386

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:299

約数の個数: 48

約数和(自身を含む): 141571584

約数和(自身を除く): 60082198

約数列:

[1, 2, 11, 22, 41, 43, 82, 86, 121, 191, 242, 382, 451, 473, 902, 946, 1763, 2101, 3526, 4202, 4961, 5203, 7831, 8213, 9922, 10406, 15662, 16426, 19393, 23111, 38786, 46222, 86141, 90343, 172282, 180686, 213323, 336733, 426646, 673466, 947551, 993773, 1895102, 1987546, 3704063, 7408126, 40744693, 81489386]

約数ペア:

[(1, 81489386), (2, 40744693), (11, 7408126), (22, 3704063), (41, 1987546), (43, 1895102), (82, 993773), (86, 947551), (121, 673466), (191, 426646), (242, 336733), (382, 213323), (451, 180686), (473, 172282), (902, 90343), (946, 86141), (1763, 46222), (2101, 38786), (3526, 23111), (4202, 19393), (4961, 16426), (5203, 15662), (7831, 10406), (8213, 9922)]