20021858

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 33022080

約数和(自身を除く): 13000222

約数列:

[1, 2, 19, 38, 41, 71, 82, 142, 181, 362, 779, 1349, 1558, 2698, 2911, 3439, 5822, 6878, 7421, 12851, 14842, 25702, 55309, 110618, 140999, 244169, 281998, 488338, 526891, 1053782, 10010929, 20021858]

約数ペア:

[(1, 20021858), (2, 10010929), (19, 1053782), (38, 526891), (41, 488338), (71, 281998), (82, 244169), (142, 140999), (181, 110618), (362, 55309), (779, 25702), (1349, 14842), (1558, 12851), (2698, 7421), (2911, 6878), (3439, 5822)]