780717

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:177

約数の個数: 24

約数和(自身を含む): 1247616

約数和(自身を除く): 466899

約数列:

[1, 3, 7, 21, 47, 49, 113, 141, 147, 329, 339, 791, 987, 2303, 2373, 5311, 5537, 6909, 15933, 16611, 37177, 111531, 260239, 780717]

約数ペア:

[(1, 780717), (3, 260239), (7, 111531), (21, 37177), (47, 16611), (49, 15933), (113, 6909), (141, 5537), (147, 5311), (329, 2373), (339, 2303), (791, 987)]