20739798

素因数分解:

$2^1\times 3^2\times {\mathrm{59}}^2\times {\mathrm{331}}^1$

素因数の和:457

約数の個数: 36

約数和(自身を含む): 45848868

約数和(自身を除く): 25109070

約数列:

[1, 2, 3, 6, 9, 18, 59, 118, 177, 331, 354, 531, 662, 993, 1062, 1986, 2979, 3481, 5958, 6962, 10443, 19529, 20886, 31329, 39058, 58587, 62658, 117174, 175761, 351522, 1152211, 2304422, 3456633, 6913266, 10369899, 20739798]

約数ペア:

[(1, 20739798), (2, 10369899), (3, 6913266), (6, 3456633), (9, 2304422), (18, 1152211), (59, 351522), (118, 175761), (177, 117174), (331, 62658), (354, 58587), (531, 39058), (662, 31329), (993, 20886), (1062, 19529), (1986, 10443), (2979, 6962), (3481, 5958)]