21050604

素因数分解:

$2^2\times 3^6\times {\mathrm{7219}}^1$

素因数の和:7241

約数の個数: 42

約数和(自身を含む): 55240220

約数和(自身を除く): 34189616

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 7219, 14438, 21657, 28876, 43314, 64971, 86628, 129942, 194913, 259884, 389826, 584739, 779652, 1169478, 1754217, 2338956, 3508434, 5262651, 7016868, 10525302, 21050604]

約数ペア:

[(1, 21050604), (2, 10525302), (3, 7016868), (4, 5262651), (6, 3508434), (9, 2338956), (12, 1754217), (18, 1169478), (27, 779652), (36, 584739), (54, 389826), (81, 259884), (108, 194913), (162, 129942), (243, 86628), (324, 64971), (486, 43314), (729, 28876), (972, 21657), (1458, 14438), (2916, 7219)]