20649537

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1297}}^1$

素因数の和:1393

約数の個数: 24

約数和(自身を含む): 31385640

約数和(自身を除く): 10736103

約数列:

[1, 3, 9, 29, 61, 87, 183, 261, 549, 1297, 1769, 3891, 5307, 11673, 15921, 37613, 79117, 112839, 237351, 338517, 712053, 2294393, 6883179, 20649537]

約数ペア:

[(1, 20649537), (3, 6883179), (9, 2294393), (29, 712053), (61, 338517), (87, 237351), (183, 112839), (261, 79117), (549, 37613), (1297, 15921), (1769, 11673), (3891, 5307)]