21090498

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{523}}^1$

素因数の和:599

約数の個数: 64

約数和(自身を含む): 50706432

約数和(自身を除く): 29615934

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 47, 66, 78, 94, 141, 143, 282, 286, 429, 517, 523, 611, 858, 1034, 1046, 1222, 1551, 1569, 1833, 3102, 3138, 3666, 5753, 6721, 6799, 11506, 13442, 13598, 17259, 20163, 20397, 24581, 34518, 40326, 40794, 49162, 73743, 74789, 147486, 149578, 224367, 270391, 319553, 448734, 540782, 639106, 811173, 958659, 1622346, 1917318, 3515083, 7030166, 10545249, 21090498]

約数ペア:

[(1, 21090498), (2, 10545249), (3, 7030166), (6, 3515083), (11, 1917318), (13, 1622346), (22, 958659), (26, 811173), (33, 639106), (39, 540782), (47, 448734), (66, 319553), (78, 270391), (94, 224367), (141, 149578), (143, 147486), (282, 74789), (286, 73743), (429, 49162), (517, 40794), (523, 40326), (611, 34518), (858, 24581), (1034, 20397), (1046, 20163), (1222, 17259), (1551, 13598), (1569, 13442), (1833, 11506), (3102, 6799), (3138, 6721), (3666, 5753)]