21505554

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{56893}}^1$

素因数の和:56911

約数の個数: 32

約数和(自身を含む): 54618240

約数和(自身を除く): 33112686

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 56893, 113786, 170679, 341358, 398251, 512037, 796502, 1024074, 1194753, 1536111, 2389506, 3072222, 3584259, 7168518, 10752777, 21505554]

約数ペア:

[(1, 21505554), (2, 10752777), (3, 7168518), (6, 3584259), (7, 3072222), (9, 2389506), (14, 1536111), (18, 1194753), (21, 1024074), (27, 796502), (42, 512037), (54, 398251), (63, 341358), (126, 170679), (189, 113786), (378, 56893)]