21542778

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{17863}}^1$

素因数の和:17938

約数の個数: 24

約数和(自身を含む): 47375328

約数和(自身を除く): 25832550

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 402, 603, 1206, 17863, 35726, 53589, 107178, 160767, 321534, 1196821, 2393642, 3590463, 7180926, 10771389, 21542778]

約数ペア:

[(1, 21542778), (2, 10771389), (3, 7180926), (6, 3590463), (9, 2393642), (18, 1196821), (67, 321534), (134, 160767), (201, 107178), (402, 53589), (603, 35726), (1206, 17863)]