20125949193

素因数分解:

$3^2\times 7^2\times {\mathrm{311}}^1\times {\mathrm{146743}}^1$

素因数の和:147074

約数の個数: 36

約数和(自身を含む): 33926038848

約数和(自身を除く): 13800089655

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 311, 441, 933, 2177, 2799, 6531, 15239, 19593, 45717, 137151, 146743, 440229, 1027201, 1320687, 3081603, 7190407, 9244809, 21571221, 45637073, 64713663, 136911219, 319459511, 410733657, 958378533, 2236216577, 2875135599, 6708649731, 20125949193]

約数ペア:

[(1, 20125949193), (3, 6708649731), (7, 2875135599), (9, 2236216577), (21, 958378533), (49, 410733657), (63, 319459511), (147, 136911219), (311, 64713663), (441, 45637073), (933, 21571221), (2177, 9244809), (2799, 7190407), (6531, 3081603), (15239, 1320687), (19593, 1027201), (45717, 440229), (137151, 146743)]