21497476

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1$

素因数の和:114

約数の個数: 108

約数和(自身を含む): 52572240

約数和(自身を除く): 31074764

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 59, 77, 91, 98, 118, 143, 154, 169, 182, 196, 236, 286, 308, 338, 364, 413, 539, 572, 637, 649, 676, 767, 826, 1001, 1078, 1183, 1274, 1298, 1534, 1652, 1859, 2002, 2156, 2366, 2548, 2596, 2891, 3068, 3718, 4004, 4543, 4732, 5369, 5782, 7007, 7436, 8281, 8437, 9086, 9971, 10738, 11564, 13013, 14014, 16562, 16874, 18172, 19942, 21476, 26026, 28028, 31801, 33124, 33748, 37583, 39884, 52052, 59059, 63602, 69797, 75166, 91091, 109681, 118118, 127204, 139594, 150332, 182182, 219362, 236236, 279188, 364364, 413413, 438724, 488579, 767767, 826826, 977158, 1535534, 1653652, 1954316, 3071068, 5374369, 10748738, 21497476]

約数ペア:

[(1, 21497476), (2, 10748738), (4, 5374369), (7, 3071068), (11, 1954316), (13, 1653652), (14, 1535534), (22, 977158), (26, 826826), (28, 767767), (44, 488579), (49, 438724), (52, 413413), (59, 364364), (77, 279188), (91, 236236), (98, 219362), (118, 182182), (143, 150332), (154, 139594), (169, 127204), (182, 118118), (196, 109681), (236, 91091), (286, 75166), (308, 69797), (338, 63602), (364, 59059), (413, 52052), (539, 39884), (572, 37583), (637, 33748), (649, 33124), (676, 31801), (767, 28028), (826, 26026), (1001, 21476), (1078, 19942), (1183, 18172), (1274, 16874), (1298, 16562), (1534, 14014), (1652, 13013), (1859, 11564), (2002, 10738), (2156, 9971), (2366, 9086), (2548, 8437), (2596, 8281), (2891, 7436), (3068, 7007), (3718, 5782), (4004, 5369), (4543, 4732)]