19220097

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 28809088

約数和(自身を除く): 9588991

約数列:

[1, 3, 13, 39, 43, 73, 129, 157, 219, 471, 559, 949, 1677, 2041, 2847, 3139, 6123, 6751, 9417, 11461, 20253, 34383, 40807, 87763, 122421, 148993, 263289, 446979, 492823, 1478469, 6406699, 19220097]

約数ペア:

[(1, 19220097), (3, 6406699), (13, 1478469), (39, 492823), (43, 446979), (73, 263289), (129, 148993), (157, 122421), (219, 87763), (471, 40807), (559, 34383), (949, 20253), (1677, 11461), (2041, 9417), (2847, 6751), (3139, 6123)]