81147906

素因数分解:

$2^1\times 3^6\times 7^1\times {\mathrm{7951}}^1$

素因数の和:7978

約数の個数: 56

約数和(自身を含む): 208596864

約数和(自身を除く): 127448958

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 729, 1134, 1458, 1701, 3402, 5103, 7951, 10206, 15902, 23853, 47706, 55657, 71559, 111314, 143118, 166971, 214677, 333942, 429354, 500913, 644031, 1001826, 1288062, 1502739, 1932093, 3005478, 3864186, 4508217, 5796279, 9016434, 11592558, 13524651, 27049302, 40573953, 81147906]

約数ペア:

[(1, 81147906), (2, 40573953), (3, 27049302), (6, 13524651), (7, 11592558), (9, 9016434), (14, 5796279), (18, 4508217), (21, 3864186), (27, 3005478), (42, 1932093), (54, 1502739), (63, 1288062), (81, 1001826), (126, 644031), (162, 500913), (189, 429354), (243, 333942), (378, 214677), (486, 166971), (567, 143118), (729, 111314), (1134, 71559), (1458, 55657), (1701, 47706), (3402, 23853), (5103, 15902), (7951, 10206)]