78451209

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{26987}}^1$

素因数の和:27029

約数の個数: 24

約数和(自身を含む): 126303840

約数和(自身を除く): 47852631

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 26987, 80961, 242883, 458779, 512753, 1376337, 1538259, 4129011, 4614777, 8716801, 26150403, 78451209]

約数ペア:

[(1, 78451209), (3, 26150403), (9, 8716801), (17, 4614777), (19, 4129011), (51, 1538259), (57, 1376337), (153, 512753), (171, 458779), (323, 242883), (969, 80961), (2907, 26987)]