21208254

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{491}}^1$

素因数の和:832

約数の個数: 32

約数和(自身を含む): 44492544

約数和(自身を除く): 23284290

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 313, 491, 626, 939, 982, 1473, 1878, 2946, 7199, 11293, 14398, 21597, 22586, 33879, 43194, 67758, 153683, 307366, 461049, 922098, 3534709, 7069418, 10604127, 21208254]

約数ペア:

[(1, 21208254), (2, 10604127), (3, 7069418), (6, 3534709), (23, 922098), (46, 461049), (69, 307366), (138, 153683), (313, 67758), (491, 43194), (626, 33879), (939, 22586), (982, 21597), (1473, 14398), (1878, 11293), (2946, 7199)]