21020996876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{289721}}^1$

素因数の和:289850

約数の個数: 48

約数和(自身を含む): 42929847072

約数和(自身を除く): 21908850196

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 97, 187, 194, 374, 388, 748, 1067, 1649, 2134, 3298, 4268, 6596, 18139, 36278, 72556, 289721, 579442, 1158884, 3186931, 4925257, 6373862, 9850514, 12747724, 19701028, 28102937, 54177827, 56205874, 108355654, 112411748, 216711308, 309132307, 477749929, 618264614, 955499858, 1236529228, 1910999716, 5255249219, 10510498438, 21020996876]

約数ペア:

[(1, 21020996876), (2, 10510498438), (4, 5255249219), (11, 1910999716), (17, 1236529228), (22, 955499858), (34, 618264614), (44, 477749929), (68, 309132307), (97, 216711308), (187, 112411748), (194, 108355654), (374, 56205874), (388, 54177827), (748, 28102937), (1067, 19701028), (1649, 12747724), (2134, 9850514), (3298, 6373862), (4268, 4925257), (6596, 3186931), (18139, 1158884), (36278, 579442), (72556, 289721)]