21292474

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:802

約数の個数: 32

約数和(自身を含む): 38264832

約数和(自身を除く): 16972358

約数列:

[1, 2, 7, 14, 31, 62, 71, 142, 217, 434, 497, 691, 994, 1382, 2201, 4402, 4837, 9674, 15407, 21421, 30814, 42842, 49061, 98122, 149947, 299894, 343427, 686854, 1520891, 3041782, 10646237, 21292474]

約数ペア:

[(1, 21292474), (2, 10646237), (7, 3041782), (14, 1520891), (31, 686854), (62, 343427), (71, 299894), (142, 149947), (217, 98122), (434, 49061), (497, 42842), (691, 30814), (994, 21421), (1382, 15407), (2201, 9674), (4402, 4837)]