21131476

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{1627}}^1$

素因数の和:1839

約数の個数: 24

約数和(自身を含む): 39384576

約数和(自身を除く): 18253100

約数列:

[1, 2, 4, 17, 34, 68, 191, 382, 764, 1627, 3247, 3254, 6494, 6508, 12988, 27659, 55318, 110636, 310757, 621514, 1243028, 5282869, 10565738, 21131476]

約数ペア:

[(1, 21131476), (2, 10565738), (4, 5282869), (17, 1243028), (34, 621514), (68, 310757), (191, 110636), (382, 55318), (764, 27659), (1627, 12988), (3247, 6508), (3254, 6494)]