21307518

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{40819}}^1$

素因数の和:40856

約数の個数: 24

約数和(自身を含む): 47759400

約数和(自身を除く): 26451882

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 261, 522, 40819, 81638, 122457, 244914, 367371, 734742, 1183751, 2367502, 3551253, 7102506, 10653759, 21307518]

約数ペア:

[(1, 21307518), (2, 10653759), (3, 7102506), (6, 3551253), (9, 2367502), (18, 1183751), (29, 734742), (58, 367371), (87, 244914), (174, 122457), (261, 81638), (522, 40819)]