20351788

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{5647}}^1$

素因数の和:5721

約数の個数: 24

約数和(自身を含む): 38428992

約数和(自身を除く): 18077204

約数列:

[1, 2, 4, 17, 34, 53, 68, 106, 212, 901, 1802, 3604, 5647, 11294, 22588, 95999, 191998, 299291, 383996, 598582, 1197164, 5087947, 10175894, 20351788]

約数ペア:

[(1, 20351788), (2, 10175894), (4, 5087947), (17, 1197164), (34, 598582), (53, 383996), (68, 299291), (106, 191998), (212, 95999), (901, 22588), (1802, 11294), (3604, 5647)]