19951766

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{641}}^1$

素因数の和:919

約数の個数: 16

約数和(自身を含む): 30507840

約数和(自身を除く): 10556074

約数列:

[1, 2, 79, 158, 197, 394, 641, 1282, 15563, 31126, 50639, 101278, 126277, 252554, 9975883, 19951766]

約数ペア:

[(1, 19951766), (2, 9975883), (79, 252554), (158, 126277), (197, 101278), (394, 50639), (641, 31126), (1282, 15563)]