21961647

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 32626880

約数和(自身を除く): 10665233

約数列:

[1, 3, 9, 61, 109, 183, 327, 367, 549, 981, 1101, 3303, 6649, 19947, 22387, 40003, 59841, 67161, 120009, 201483, 360027, 2440183, 7320549, 21961647]

約数ペア:

[(1, 21961647), (3, 7320549), (9, 2440183), (61, 360027), (109, 201483), (183, 120009), (327, 67161), (367, 59841), (549, 40003), (981, 22387), (1101, 19947), (3303, 6649)]