21529233

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 35672736

約数和(自身を除く): 14143503

約数列:

[1, 3, 9, 11, 27, 33, 73, 81, 99, 219, 297, 331, 657, 803, 891, 993, 1971, 2409, 2979, 3641, 5913, 7227, 8937, 10923, 21681, 24163, 26811, 32769, 65043, 72489, 98307, 217467, 265793, 294921, 652401, 797379, 1957203, 2392137, 7176411, 21529233]

約数ペア:

[(1, 21529233), (3, 7176411), (9, 2392137), (11, 1957203), (27, 797379), (33, 652401), (73, 294921), (81, 265793), (99, 217467), (219, 98307), (297, 72489), (331, 65043), (657, 32769), (803, 26811), (891, 24163), (993, 21681), (1971, 10923), (2409, 8937), (2979, 7227), (3641, 5913)]