21710728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1951}}^1$

素因数の和:2077

約数の個数: 32

約数和(自身を含む): 44271360

約数和(自身を除く): 22560632

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 107, 214, 428, 856, 1391, 1951, 2782, 3902, 5564, 7804, 11128, 15608, 25363, 50726, 101452, 202904, 208757, 417514, 835028, 1670056, 2713841, 5427682, 10855364, 21710728]

約数ペア:

[(1, 21710728), (2, 10855364), (4, 5427682), (8, 2713841), (13, 1670056), (26, 835028), (52, 417514), (104, 208757), (107, 202904), (214, 101452), (428, 50726), (856, 25363), (1391, 15608), (1951, 11128), (2782, 7804), (3902, 5564)]