19612016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72103}}^1$

素因数の和:72128

約数の個数: 20

約数和(自身を含む): 40234032

約数和(自身を除く): 20622016

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72103, 144206, 288412, 576824, 1153648, 1225751, 2451502, 4903004, 9806008, 19612016]

約数ペア:

[(1, 19612016), (2, 9806008), (4, 4903004), (8, 2451502), (16, 1225751), (17, 1153648), (34, 576824), (68, 288412), (136, 144206), (272, 72103)]