21429688

素因数分解:

$2^3\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1489}}^1$

素因数の和:1759

約数の個数: 32

約数和(自身を含む): 46130400

約数和(自身を除く): 24700712

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 257, 514, 1028, 1489, 1799, 2056, 2978, 3598, 5956, 7196, 10423, 11912, 14392, 20846, 41692, 83384, 382673, 765346, 1530692, 2678711, 3061384, 5357422, 10714844, 21429688]

約数ペア:

[(1, 21429688), (2, 10714844), (4, 5357422), (7, 3061384), (8, 2678711), (14, 1530692), (28, 765346), (56, 382673), (257, 83384), (514, 41692), (1028, 20846), (1489, 14392), (1799, 11912), (2056, 10423), (2978, 7196), (3598, 5956)]