18900868

素因数分解:

$2^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1321}}^1$

素因数の和:1412

約数の個数: 36

約数和(自身を含む): 39033372

約数和(自身を除く): 20132504

約数列:

[1, 2, 4, 7, 14, 28, 49, 73, 98, 146, 196, 292, 511, 1022, 1321, 2044, 2642, 3577, 5284, 7154, 9247, 14308, 18494, 36988, 64729, 96433, 129458, 192866, 258916, 385732, 675031, 1350062, 2700124, 4725217, 9450434, 18900868]

約数ペア:

[(1, 18900868), (2, 9450434), (4, 4725217), (7, 2700124), (14, 1350062), (28, 675031), (49, 385732), (73, 258916), (98, 192866), (146, 129458), (196, 96433), (292, 64729), (511, 36988), (1022, 18494), (1321, 14308), (2044, 9247), (2642, 7154), (3577, 5284)]