21482805

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{853}}^1$

素因数の和:957

約数の個数: 32

約数和(自身を含む): 36400896

約数和(自身を除く): 14918091

約数列:

[1, 3, 5, 15, 23, 69, 73, 115, 219, 345, 365, 853, 1095, 1679, 2559, 4265, 5037, 8395, 12795, 19619, 25185, 58857, 62269, 98095, 186807, 294285, 311345, 934035, 1432187, 4296561, 7160935, 21482805]

約数ペア:

[(1, 21482805), (3, 7160935), (5, 4296561), (15, 1432187), (23, 934035), (69, 311345), (73, 294285), (115, 186807), (219, 98095), (345, 62269), (365, 58857), (853, 25185), (1095, 19619), (1679, 12795), (2559, 8395), (4265, 5037)]