21518203

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{797}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 27291600

約数和(自身を除く): 5773397

約数列:

[1, 7, 19, 29, 49, 133, 203, 551, 797, 931, 1421, 3857, 5579, 15143, 23113, 26999, 39053, 106001, 161791, 439147, 742007, 1132537, 3074029, 21518203]

約数ペア:

[(1, 21518203), (7, 3074029), (19, 1132537), (29, 742007), (49, 439147), (133, 161791), (203, 106001), (551, 39053), (797, 26999), (931, 23113), (1421, 15143), (3857, 5579)]