42780717

素因数分解:

$3^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{383}}^1$

素因数の和:599

約数の個数: 40

約数和(自身を含む): 73598976

約数和(自身を除く): 30818259

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 197, 383, 567, 591, 1149, 1379, 1773, 2681, 3447, 4137, 5319, 8043, 10341, 12411, 15957, 24129, 31023, 37233, 72387, 75451, 111699, 217161, 226353, 528157, 679059, 1584471, 2037177, 4753413, 6111531, 14260239, 42780717]

約数ペア:

[(1, 42780717), (3, 14260239), (7, 6111531), (9, 4753413), (21, 2037177), (27, 1584471), (63, 679059), (81, 528157), (189, 226353), (197, 217161), (383, 111699), (567, 75451), (591, 72387), (1149, 37233), (1379, 31023), (1773, 24129), (2681, 15957), (3447, 12411), (4137, 10341), (5319, 8043)]