398691839

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{787}}^1$

素因数の和:1119

約数の個数: 32

約数和(自身を含む): 518945280

約数和(自身を除く): 120253441

約数列:

[1, 7, 13, 19, 91, 133, 247, 293, 787, 1729, 2051, 3809, 5509, 5567, 10231, 14953, 26663, 38969, 71617, 72371, 104671, 194389, 230591, 506597, 1360723, 1614137, 2997683, 4381229, 20983781, 30668603, 56955977, 398691839]

約数ペア:

[(1, 398691839), (7, 56955977), (13, 30668603), (19, 20983781), (91, 4381229), (133, 2997683), (247, 1614137), (293, 1360723), (787, 506597), (1729, 230591), (2051, 194389), (3809, 104671), (5509, 72371), (5567, 71617), (10231, 38969), (14953, 26663)]