21788604

素因数分解:

$2^2\times 3^2\times {\mathrm{605239}}^1$

素因数の和:605249

約数の個数: 18

約数和(自身を含む): 55076840

約数和(自身を除く): 33288236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 605239, 1210478, 1815717, 2420956, 3631434, 5447151, 7262868, 10894302, 21788604]

約数ペア:

[(1, 21788604), (2, 10894302), (3, 7262868), (4, 5447151), (6, 3631434), (9, 2420956), (12, 1815717), (18, 1210478), (36, 605239)]