20844159

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 36115200

約数和(自身を除く): 15271041

約数列:

[1, 3, 7, 17, 19, 21, 49, 51, 57, 119, 133, 147, 323, 357, 399, 439, 833, 931, 969, 1317, 2261, 2499, 2793, 3073, 6783, 7463, 8341, 9219, 15827, 21511, 22389, 25023, 47481, 52241, 58387, 64533, 141797, 156723, 175161, 365687, 408709, 425391, 992579, 1097061, 1226127, 2977737, 6948053, 20844159]

約数ペア:

[(1, 20844159), (3, 6948053), (7, 2977737), (17, 1226127), (19, 1097061), (21, 992579), (49, 425391), (51, 408709), (57, 365687), (119, 175161), (133, 156723), (147, 141797), (323, 64533), (357, 58387), (399, 52241), (439, 47481), (833, 25023), (931, 22389), (969, 21511), (1317, 15827), (2261, 9219), (2499, 8341), (2793, 7463), (3073, 6783)]