81969543

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:544

約数の個数: 32

約数和(自身を含む): 124605120

約数和(自身を除く): 42635577

約数列:

[1, 3, 9, 27, 61, 157, 183, 317, 471, 549, 951, 1413, 1647, 2853, 4239, 8559, 9577, 19337, 28731, 49769, 58011, 86193, 149307, 174033, 258579, 447921, 522099, 1343763, 3035909, 9107727, 27323181, 81969543]

約数ペア:

[(1, 81969543), (3, 27323181), (9, 9107727), (27, 3035909), (61, 1343763), (157, 522099), (183, 447921), (317, 258579), (471, 174033), (549, 149307), (951, 86193), (1413, 58011), (1647, 49769), (2853, 28731), (4239, 19337), (8559, 9577)]