19505978

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{6329}}^1$

素因数の和:6421

約数の個数: 16

約数和(自身を含む): 30991680

約数和(自身を除く): 11485702

約数列:

[1, 2, 23, 46, 67, 134, 1541, 3082, 6329, 12658, 145567, 291134, 424043, 848086, 9752989, 19505978]

約数ペア:

[(1, 19505978), (2, 9752989), (23, 848086), (46, 424043), (67, 291134), (134, 145567), (1541, 12658), (3082, 6329)]