21488584

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{563}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 43585920

約数和(自身を除く): 22097336

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 367, 563, 734, 1126, 1468, 2252, 2936, 4504, 4771, 7319, 9542, 14638, 19084, 29276, 38168, 58552, 206621, 413242, 826484, 1652968, 2686073, 5372146, 10744292, 21488584]

約数ペア:

[(1, 21488584), (2, 10744292), (4, 5372146), (8, 2686073), (13, 1652968), (26, 826484), (52, 413242), (104, 206621), (367, 58552), (563, 38168), (734, 29276), (1126, 19084), (1468, 14638), (2252, 9542), (2936, 7319), (4504, 4771)]