21308337

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1049}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 32159400

約数和(自身を除く): 10851063

約数列:

[1, 3, 9, 37, 61, 111, 183, 333, 549, 1049, 2257, 3147, 6771, 9441, 20313, 38813, 63989, 116439, 191967, 349317, 575901, 2367593, 7102779, 21308337]

約数ペア:

[(1, 21308337), (3, 7102779), (9, 2367593), (37, 575901), (61, 349317), (111, 191967), (183, 116439), (333, 63989), (549, 38813), (1049, 20313), (2257, 9441), (3147, 6771)]