20920588

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3691}}^1$

素因数の和:3817

約数の個数: 24

約数和(自身を含む): 39799760

約数和(自身を除く): 18879172

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 436, 1417, 2834, 3691, 5668, 7382, 14764, 47983, 95966, 191932, 402319, 804638, 1609276, 5230147, 10460294, 20920588]

約数ペア:

[(1, 20920588), (2, 10460294), (4, 5230147), (13, 1609276), (26, 804638), (52, 402319), (109, 191932), (218, 95966), (436, 47983), (1417, 14764), (2834, 7382), (3691, 5668)]