20501551

素因数分解:

$7^2\times {\mathrm{19}}^3\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 24

約数和(自身を含む): 25586160

約数和(自身を除く): 5084609

約数列:

[1, 7, 19, 49, 61, 133, 361, 427, 931, 1159, 2527, 2989, 6859, 8113, 17689, 22021, 48013, 56791, 154147, 336091, 418399, 1079029, 2928793, 20501551]

約数ペア:

[(1, 20501551), (7, 2928793), (19, 1079029), (49, 418399), (61, 336091), (133, 154147), (361, 56791), (427, 48013), (931, 22021), (1159, 17689), (2527, 8113), (2989, 6859)]