81220266

素因数分解:

$2^1\times 3^3\times {\mathrm{971}}^1\times {\mathrm{1549}}^1$

素因数の和:2531

約数の個数: 32

約数和(自身を含む): 180792000

約数和(自身を除く): 99571734

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 971, 1549, 1942, 2913, 3098, 4647, 5826, 8739, 9294, 13941, 17478, 26217, 27882, 41823, 52434, 83646, 1504079, 3008158, 4512237, 9024474, 13536711, 27073422, 40610133, 81220266]

約数ペア:

[(1, 81220266), (2, 40610133), (3, 27073422), (6, 13536711), (9, 9024474), (18, 4512237), (27, 3008158), (54, 1504079), (971, 83646), (1549, 52434), (1942, 41823), (2913, 27882), (3098, 26217), (4647, 17478), (5826, 13941), (8739, 9294)]