20999368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{8779}}^1$

素因数の和:8821

約数の個数: 32

約数和(自身を含む): 44251200

約数和(自身を除く): 23251832

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 92, 104, 184, 299, 598, 1196, 2392, 8779, 17558, 35116, 70232, 114127, 201917, 228254, 403834, 456508, 807668, 913016, 1615336, 2624921, 5249842, 10499684, 20999368]

約数ペア:

[(1, 20999368), (2, 10499684), (4, 5249842), (8, 2624921), (13, 1615336), (23, 913016), (26, 807668), (46, 456508), (52, 403834), (92, 228254), (104, 201917), (184, 114127), (299, 70232), (598, 35116), (1196, 17558), (2392, 8779)]