20513614

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 48

約数和(自身を含む): 36388800

約数和(自身を除く): 15875186

約数列:

[1, 2, 11, 22, 29, 37, 58, 74, 79, 121, 158, 242, 319, 407, 638, 814, 869, 1073, 1738, 2146, 2291, 2923, 3509, 4477, 4582, 5846, 7018, 8954, 9559, 11803, 19118, 23606, 25201, 32153, 50402, 64306, 84767, 129833, 169534, 259666, 277211, 353683, 554422, 707366, 932437, 1864874, 10256807, 20513614]

約数ペア:

[(1, 20513614), (2, 10256807), (11, 1864874), (22, 932437), (29, 707366), (37, 554422), (58, 353683), (74, 277211), (79, 259666), (121, 169534), (158, 129833), (242, 84767), (319, 64306), (407, 50402), (638, 32153), (814, 25201), (869, 23606), (1073, 19118), (1738, 11803), (2146, 9559), (2291, 8954), (2923, 7018), (3509, 5846), (4477, 4582)]