20729478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4079}}^1$

素因数の和:4113

約数の個数: 48

約数和(自身を含む): 52093440

約数和(自身を除く): 31363962

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 121, 154, 231, 242, 363, 462, 726, 847, 1694, 2541, 4079, 5082, 8158, 12237, 24474, 28553, 44869, 57106, 85659, 89738, 134607, 171318, 269214, 314083, 493559, 628166, 942249, 987118, 1480677, 1884498, 2961354, 3454913, 6909826, 10364739, 20729478]

約数ペア:

[(1, 20729478), (2, 10364739), (3, 6909826), (6, 3454913), (7, 2961354), (11, 1884498), (14, 1480677), (21, 987118), (22, 942249), (33, 628166), (42, 493559), (66, 314083), (77, 269214), (121, 171318), (154, 134607), (231, 89738), (242, 85659), (363, 57106), (462, 44869), (726, 28553), (847, 24474), (1694, 12237), (2541, 8158), (4079, 5082)]