19983478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 33078240

約数和(自身を除く): 13094762

約数列:

[1, 2, 19, 37, 38, 61, 74, 122, 233, 466, 703, 1159, 1406, 2257, 2318, 4427, 4514, 8621, 8854, 14213, 17242, 28426, 42883, 85766, 163799, 270047, 327598, 525881, 540094, 1051762, 9991739, 19983478]

約数ペア:

[(1, 19983478), (2, 9991739), (19, 1051762), (37, 540094), (38, 525881), (61, 327598), (74, 270047), (122, 163799), (233, 85766), (466, 42883), (703, 28426), (1159, 17242), (1406, 14213), (2257, 8854), (2318, 8621), (4427, 4514)]