79921989

素因数分解:

$3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1427}}^1$

素因数の和:1574

約数の個数: 36

約数和(自身を含む): 135442944

約数和(自身を除く): 55520955

約数列:

[1, 3, 7, 9, 21, 49, 63, 127, 147, 381, 441, 889, 1143, 1427, 2667, 4281, 6223, 8001, 9989, 12843, 18669, 29967, 56007, 69923, 89901, 181229, 209769, 543687, 629307, 1268603, 1631061, 3805809, 8880221, 11417427, 26640663, 79921989]

約数ペア:

[(1, 79921989), (3, 26640663), (7, 11417427), (9, 8880221), (21, 3805809), (49, 1631061), (63, 1268603), (127, 629307), (147, 543687), (381, 209769), (441, 181229), (889, 89901), (1143, 69923), (1427, 56007), (2667, 29967), (4281, 18669), (6223, 12843), (8001, 9989)]