19938999

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 29767680

約数和(自身を除く): 9828681

約数列:

[1, 3, 19, 23, 57, 67, 69, 201, 227, 437, 681, 1273, 1311, 1541, 3819, 4313, 4623, 5221, 12939, 15209, 15663, 29279, 45627, 87837, 99199, 288971, 297597, 349807, 866913, 1049421, 6646333, 19938999]

約数ペア:

[(1, 19938999), (3, 6646333), (19, 1049421), (23, 866913), (57, 349807), (67, 297597), (69, 288971), (201, 99199), (227, 87837), (437, 45627), (681, 29279), (1273, 15663), (1311, 15209), (1541, 12939), (3819, 5221), (4313, 4623)]