21555963

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1861}}^1$

素因数の和:1897

約数の個数: 40

約数和(自身を含む): 37850736

約数和(自身を除く): 16294773

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 297, 351, 429, 891, 1053, 1287, 1861, 3861, 5583, 11583, 16749, 20471, 24193, 50247, 61413, 72579, 150741, 184239, 217737, 266123, 552717, 653211, 798369, 1658151, 1959633, 2395107, 7185321, 21555963]

約数ペア:

[(1, 21555963), (3, 7185321), (9, 2395107), (11, 1959633), (13, 1658151), (27, 798369), (33, 653211), (39, 552717), (81, 266123), (99, 217737), (117, 184239), (143, 150741), (297, 72579), (351, 61413), (429, 50247), (891, 24193), (1053, 20471), (1287, 16749), (1861, 11583), (3861, 5583)]