21152824

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1493}}^1$

素因数の和:1540

約数の個数: 64

約数和(自身を含む): 51632640

約数和(自身を除く): 30479816

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 44, 46, 56, 77, 88, 92, 154, 161, 184, 253, 308, 322, 506, 616, 644, 1012, 1288, 1493, 1771, 2024, 2986, 3542, 5972, 7084, 10451, 11944, 14168, 16423, 20902, 32846, 34339, 41804, 65692, 68678, 83608, 114961, 131384, 137356, 229922, 240373, 274712, 377729, 459844, 480746, 755458, 919688, 961492, 1510916, 1922984, 2644103, 3021832, 5288206, 10576412, 21152824]

約数ペア:

[(1, 21152824), (2, 10576412), (4, 5288206), (7, 3021832), (8, 2644103), (11, 1922984), (14, 1510916), (22, 961492), (23, 919688), (28, 755458), (44, 480746), (46, 459844), (56, 377729), (77, 274712), (88, 240373), (92, 229922), (154, 137356), (161, 131384), (184, 114961), (253, 83608), (308, 68678), (322, 65692), (506, 41804), (616, 34339), (644, 32846), (1012, 20902), (1288, 16423), (1493, 14168), (1771, 11944), (2024, 10451), (2986, 7084), (3542, 5972)]