19800309

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{4283}}^1$

素因数の和:4376

約数の個数: 16

約数和(自身を含む): 27965952

約数和(自身を除く): 8165643

約数列:

[1, 3, 23, 67, 69, 201, 1541, 4283, 4623, 12849, 98509, 286961, 295527, 860883, 6600103, 19800309]

約数ペア:

[(1, 19800309), (3, 6600103), (23, 860883), (67, 295527), (69, 286961), (201, 98509), (1541, 12849), (4283, 4623)]