21025004

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 29778196

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 59, 77, 89, 91, 118, 143, 154, 178, 182, 236, 286, 308, 356, 364, 413, 572, 623, 649, 767, 826, 979, 1001, 1157, 1246, 1298, 1534, 1652, 1958, 2002, 2314, 2492, 2596, 3068, 3916, 4004, 4543, 4628, 5251, 5369, 6853, 8099, 8437, 9086, 10502, 10738, 12727, 13706, 16198, 16874, 18172, 21004, 21476, 25454, 27412, 32396, 33748, 36757, 50908, 57761, 59059, 68263, 73514, 89089, 115522, 118118, 136526, 147028, 178178, 231044, 236236, 273052, 356356, 404327, 477841, 750893, 808654, 955682, 1501786, 1617308, 1911364, 3003572, 5256251, 10512502, 21025004]

約数ペア:

[(1, 21025004), (2, 10512502), (4, 5256251), (7, 3003572), (11, 1911364), (13, 1617308), (14, 1501786), (22, 955682), (26, 808654), (28, 750893), (44, 477841), (52, 404327), (59, 356356), (77, 273052), (89, 236236), (91, 231044), (118, 178178), (143, 147028), (154, 136526), (178, 118118), (182, 115522), (236, 89089), (286, 73514), (308, 68263), (356, 59059), (364, 57761), (413, 50908), (572, 36757), (623, 33748), (649, 32396), (767, 27412), (826, 25454), (979, 21476), (1001, 21004), (1157, 18172), (1246, 16874), (1298, 16198), (1534, 13706), (1652, 12727), (1958, 10738), (2002, 10502), (2314, 9086), (2492, 8437), (2596, 8099), (3068, 6853), (3916, 5369), (4004, 5251), (4543, 4628)]