20784544

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:589

約数の個数: 48

約数和(自身を含む): 45069696

約数和(自身を除く): 24285152

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 137, 176, 274, 352, 431, 548, 862, 1096, 1507, 1724, 2192, 3014, 3448, 4384, 4741, 6028, 6896, 9482, 12056, 13792, 18964, 24112, 37928, 48224, 59047, 75856, 118094, 151712, 236188, 472376, 649517, 944752, 1299034, 1889504, 2598068, 5196136, 10392272, 20784544]

約数ペア:

[(1, 20784544), (2, 10392272), (4, 5196136), (8, 2598068), (11, 1889504), (16, 1299034), (22, 944752), (32, 649517), (44, 472376), (88, 236188), (137, 151712), (176, 118094), (274, 75856), (352, 59047), (431, 48224), (548, 37928), (862, 24112), (1096, 18964), (1507, 13792), (1724, 12056), (2192, 9482), (3014, 6896), (3448, 6028), (4384, 4741)]