213257653

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1459}}^1$

素因数の和:1649

約数の個数: 24

約数和(自身を含む): 262975200

約数和(自身を除く): 49717547

約数列:

[1, 7, 19, 49, 133, 157, 931, 1099, 1459, 2983, 7693, 10213, 20881, 27721, 71491, 146167, 194047, 229063, 1358329, 1603441, 4352197, 11224087, 30465379, 213257653]

約数ペア:

[(1, 213257653), (7, 30465379), (19, 11224087), (49, 4352197), (133, 1603441), (157, 1358329), (931, 229063), (1099, 194047), (1459, 146167), (2983, 71491), (7693, 27721), (10213, 20881)]