21820824

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{8191}}^1$

素因数の和:8240

約数の個数: 48

約数和(自身を含む): 60702720

約数和(自身を除く): 38881896

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 8191, 16382, 24573, 32764, 49146, 65528, 73719, 98292, 147438, 196584, 294876, 303067, 589752, 606134, 909201, 1212268, 1818402, 2424536, 2727603, 3636804, 5455206, 7273608, 10910412, 21820824]

約数ペア:

[(1, 21820824), (2, 10910412), (3, 7273608), (4, 5455206), (6, 3636804), (8, 2727603), (9, 2424536), (12, 1818402), (18, 1212268), (24, 909201), (36, 606134), (37, 589752), (72, 303067), (74, 294876), (111, 196584), (148, 147438), (222, 98292), (296, 73719), (333, 65528), (444, 49146), (666, 32764), (888, 24573), (1332, 16382), (2664, 8191)]