81750999

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:711

約数の個数: 32

約数和(自身を含む): 123770880

約数和(自身を除く): 42019881

約数列:

[1, 3, 11, 31, 33, 93, 157, 341, 471, 509, 1023, 1527, 1727, 4867, 5181, 5599, 14601, 15779, 16797, 47337, 53537, 79913, 160611, 173569, 239739, 520707, 879043, 2477303, 2637129, 7431909, 27250333, 81750999]

約数ペア:

[(1, 81750999), (3, 27250333), (11, 7431909), (31, 2637129), (33, 2477303), (93, 879043), (157, 520707), (341, 239739), (471, 173569), (509, 160611), (1023, 79913), (1527, 53537), (1727, 47337), (4867, 16797), (5181, 15779), (5599, 14601)]