21796719

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{5113}}^1$

素因数の和:5159

約数の個数: 24

約数和(自身を含む): 34979760

約数和(自身を除く): 13183041

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 5113, 15339, 35791, 107373, 148277, 250537, 444831, 751611, 1037939, 3113817, 7265573, 21796719]

約数ペア:

[(1, 21796719), (3, 7265573), (7, 3113817), (21, 1037939), (29, 751611), (49, 444831), (87, 250537), (147, 148277), (203, 107373), (609, 35791), (1421, 15339), (4263, 5113)]