20937189

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{283}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 34607104

約数和(自身を除く): 13669915

約数列:

[1, 3, 7, 13, 21, 39, 91, 271, 273, 283, 813, 849, 1897, 1981, 3523, 3679, 5691, 5943, 10569, 11037, 24661, 25753, 73983, 76693, 77259, 230079, 536851, 997009, 1610553, 2991027, 6979063, 20937189]

約数ペア:

[(1, 20937189), (3, 6979063), (7, 2991027), (13, 1610553), (21, 997009), (39, 536851), (91, 230079), (271, 77259), (273, 76693), (283, 73983), (813, 25753), (849, 24661), (1897, 11037), (1981, 10569), (3523, 5943), (3679, 5691)]