19338291

素因数分解:

$3^3\times 7^2\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 34145280

約数和(自身を除く): 14806989

約数列:

[1, 3, 7, 9, 21, 27, 47, 49, 63, 141, 147, 189, 311, 329, 423, 441, 933, 987, 1269, 1323, 2177, 2303, 2799, 2961, 6531, 6909, 8397, 8883, 14617, 15239, 19593, 20727, 43851, 45717, 58779, 62181, 102319, 131553, 137151, 306957, 394659, 411453, 716233, 920871, 2148699, 2762613, 6446097, 19338291]

約数ペア:

[(1, 19338291), (3, 6446097), (7, 2762613), (9, 2148699), (21, 920871), (27, 716233), (47, 411453), (49, 394659), (63, 306957), (141, 137151), (147, 131553), (189, 102319), (311, 62181), (329, 58779), (423, 45717), (441, 43851), (933, 20727), (987, 19593), (1269, 15239), (1323, 14617), (2177, 8883), (2303, 8397), (2799, 6909), (2961, 6531)]