19809688

素因数分解:

$2^3\times {\mathrm{331}}^1\times {\mathrm{7481}}^1$

素因数の和:7818

約数の個数: 16

約数和(自身を含む): 37260360

約数和(自身を除く): 17450672

約数列:

[1, 2, 4, 8, 331, 662, 1324, 2648, 7481, 14962, 29924, 59848, 2476211, 4952422, 9904844, 19809688]

約数ペア:

[(1, 19809688), (2, 9904844), (4, 4952422), (8, 2476211), (331, 59848), (662, 29924), (1324, 14962), (2648, 7481)]