17978042

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 32

約数和(自身を含む): 29462400

約数和(自身を除く): 11484358

約数列:

[1, 2, 23, 43, 46, 61, 86, 122, 149, 298, 989, 1403, 1978, 2623, 2806, 3427, 5246, 6407, 6854, 9089, 12814, 18178, 60329, 120658, 147361, 209047, 294722, 390827, 418094, 781654, 8989021, 17978042]

約数ペア:

[(1, 17978042), (2, 8989021), (23, 781654), (43, 418094), (46, 390827), (61, 294722), (86, 209047), (122, 147361), (149, 120658), (298, 60329), (989, 18178), (1403, 12814), (1978, 9089), (2623, 6854), (2806, 6407), (3427, 5246)]