18699728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{68749}}^1$

素因数の和:68774

約数の個数: 20

約数和(自身を含む): 38362500

約数和(自身を除く): 19662772

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 68749, 137498, 274996, 549992, 1099984, 1168733, 2337466, 4674932, 9349864, 18699728]

約数ペア:

[(1, 18699728), (2, 9349864), (4, 4674932), (8, 2337466), (16, 1168733), (17, 1099984), (34, 549992), (68, 274996), (136, 137498), (272, 68749)]